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Index to OEIS: Section Ch

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Index to OEIS: Section Ch


[ Aa | Ab | Al | Am | Ap | Ar | Ba | Be | Bi | Bl | Bo | Br | Ca | Ce | Ch | Cl | Coa | Coi | Com | Con | Cor | Cu | Cy | Da | De | Di | Do | Ea | Ed | El | Eu | Fa | Fe | Fi | Fo | Fu | Ga | Ge | Go | Gra | Gre | Ha | He | Ho | Ia | In | J | K | La | Lc | Li | Lo | Lu | M | Mag | Map | Mat | Me | Mo | Mu | N | Na | Ne | Ni | No | Nu | O | Pac | Par | Pas | Pea | Per | Ph | Poi | Pol | Pos | Pow | Pra | Pri | Pro | Ps | Qua | Que | Ra | Rea | Rel | Res | Ro | Ru | Sa | Se | Si | Sk | So | Sp | Sq | St | Su | Sw | Ta | Te | Th | To | Tra | Tri | Tu | U | V | Wa | We | Wi | X | Y | Z | 1 | 2 | 3 | 4 ]


Chacon sequences: A049320*, A049321*
Chains:: A007047, A005603, A005602
challenge problems, see sequences that need extending
Champernowne , sequences related to :

Champernowne constant: A033307*, A030167*, A058068, A058069, A007376, A033308
Champernowne sequence: A030190*, A030302

change, making: see making change
change ringing: see bell ringing
character tables: see also degrees of irreducible representations
characteristic functions , sequences related to :

characteristic functions (000): char fn where where name of "chi_n=1"
characteristic functions (001): chi chi_n=1 chi_n=0
characteristic functions (002): A000007 A000004 A000027 all 0
characteristic functions (003): A000012 A001477 [empty] natural numbers
characteristic functions (004): A000035 A005408 A005843 odd numbers
characteristic functions (005): A003849 A003622 A022342
characteristic functions (006): A004641 A086377 A081477
characteristic functions (007): A005171 A018252 A000040 nonprimes
characteristic functions (008): A005369 A002378 A078358 pronic numbers
characteristic functions (009): A005614 A022342 A003622
characteristic functions (010): A008966 A005117 A013929 squarefree
characteristic functions (011): A010051 A000040 A018252 primes
characteristic functions (012): A010052 A000290 A000037 squares
characteristic functions (013): A010054 A000217 A014132 triangular numbers
characteristic functions (014): A010055 A000961 A024619 prime powers
characteristic functions (015): A010056 A000045 A001690 Fibonacci numbers
characteristic functions (016): A010057 A000578 A007412 cubes
characteristic functions (017): A010058 A000108 A092459 Catalan numbers
characteristic functions (018): A010059 A001969 A000069 evil numbers
characteristic functions (019): A010060 A000069 A001969 odious numbers
characteristic functions (020): A011655 A001651 A008585 not mult 3
characteristic functions (021): A012245 A000142 A063992 factorials
characteristic functions (022): A014306 A145397 A000292 m(m+1)(m+2)6
characteristic functions (023): A014578 A007417 A145204
characteristic functions (024): A020987 A022155 NA
characteristic functions (025): A023531 A000096 A007401 m(m+3)2
characteristic functions (026): A023533 A000292 A145397 m(m+1)(m+2)6
characteristic functions (027): A033683 A104777 NA odd squares mod 3 > 0
characteristic functions (028): A033684 A135556 NA squares mod 3 > 0
characteristic functions (029): A035263 A003159 A036554
characteristic functions (030): A036987 A000225 NA
characteristic functions (031): A038189 A091067 A091072
characteristic functions (033): A057427 A000027 A000004 positive numbers
characteristic functions (034): A059448 A059009 A059010
characteristic functions (035): A059841 A005843 A005408 even numbers
characteristic functions (036): A063524 A000012 A087156 all 1
characteristic functions (037): A064911 A001358 A100959 semiprimes
characteristic functions (038): A065043 A028260 A026424 even number of prime factors
characteristic functions (039): A065202 A065201 A065200
characteristic functions (040): A065333 A003586 A059485 3-smooth
characteristic functions (041): A066247 A002808 A008578 composite numbers
characteristic functions (042): A066829 A026424 A028260 odd number of prime factors
characteristic functions (043): A072401 A004215 NA of the form 4^m*(8k+7)
characteristic functions (044): A075802 A001597 A007916 perfect powers
characteristic functions (045): A075897 A048645 NA
characteristic functions (046): A079260 A002144 A137409 primes of form 4n+1
characteristic functions (047): A079261 A002145 A145395 primes of form 4n+3
characteristic functions (048): A079978 A008585 A001651 mult 3
characteristic functions (049): A079979 A008588 A047253 mult 6
characteristic functions (050): A079998 A008587 A047201 mult 5
characteristic functions (051): A080110 A080112 A080113
characteristic functions (052): A080111 A080113 A080112
characteristic functions (053): A080116 A014486 NA
characteristic functions (054): A080339 A008578 A002808 {1} union {primes}
characteristic functions (055): A080545 A006005 A065090 {1} union {odd primes}
characteristic functions (056): A080995 A001318 A118300 gen. pentagonal numbers
characteristic functions (057): A082784 A008589 A047304 mult 7
characteristic functions (058): A083187 A002379 NA [ 3^n 2^n ]
characteristic functions (059): A083923 A057548 NA
characteristic functions (060): A083924 A072795 NA
characteristic functions (061): A085357 A003714 A004780 Fibbinary numbers
characteristic functions (062): A086299 A002473 A068191 7-smooth
characteristic functions (063): A088517 A001463 NA
characteristic functions (064): A089011 A005763 NA Weyl
characteristic functions (065): A091225 A014580 NA
characteristic functions (066): A091247 A091242 NA
characteristic functions (067): A092248 A030230 A030231 even number of distinct prime factors
characteristic functions (068): A093709 A028982 A028983 squares or twice squares
characteristic functions (069): A093719 A047273 A047235 (mod 2)^(mod 3)
characteristic functions (070): A095076 A020899 A095096
characteristic functions (071): A095111 A095096 A020899
characteristic functions (072): A098108 A016754 NA
characteristic functions (073): A099104 A066680 NA badly sieved numbers
characteristic functions (074): A099395 A007283 NA
characteristic functions (075): A101040 NA NA not more than 2 prime factors
characteristic functions (076): A101605 A014612 NA exactly 3 prime factors
characteristic functions (077): A101637 A014613 NA exactly 4 prime factors
characteristic functions (078): A102460 A000032 NA Lucas numbers
characteristic functions (079): A103673 A103676 A103677 (factorial)
characteristic functions (080): A103674 A103678 A103679 (factorial)
characteristic functions (081): A103675 A103680 A103681 (factorial)
characteristic functions (082): A105349 A000129 NA Pell numbers
characteristic functions (083): A107078 A013929 A005117 non unitary divisors
characteristic functions (084): A112526 A001694 A052485 powerful numbers
characteristic functions (085): A114986 A000201 A001950
characteristic functions (086): A118952 A118957 A118956
characteristic functions (087): A121262 A008586 A042968 mult 4
characteristic functions (088): A122255 A122254 A048136
characteristic functions (089): A122257 A005109 A122259 Pierpont primes
characteristic functions (090): A122261 A122260 NA mult. closure of Pierpont primes
characteristic functions (091): A122895 A123240 NA tau=Fibonacci
characteristic functions (092): A123927 A119885 NA tau=Lucas
characteristic functions (093): A130638 A005237 NA tau(n+1)=tau(n)
characteristic functions (094): A132138 A002977 A132142
characteristic functions (095): A133010 NA NA
characteristic functions (096): A133011 NA NA
characteristic functions (097): A133100 A085787 NA gen. heptagonal numbers
characteristic functions (098): A133101 A057569 NA
characteristic functions (099): A133872 A042948 A042964 congruent 0 or 1 mod 4
characteristic functions (100): A136522 A002113 A029742 palindrome
characteristic functions (101): A137794 A073491 A073492 no prime gaps in fact
characteristic functions (102): A139689 NA NA Chen
characteristic functions (103): A141260 A141259 NA
characteristic functions (104): A143731 A024619 A000961 more than 1 prime factor
characteristic functions (105): A145649 A000959 A050505 lucky numbers
characteristic functions (106): A156660 A005384 A138887 Sophie Germain primes
characteristic functions (107): A156659 A005385 A156657 safe primes
characteristic functions (108): A079559 A005187 A055938 range of A005187
characteristic functions (109): A151774 A018900 A161989 numbers with binary weight 2
characteristic functions (110): A167392 A000041 A167376 partition numbers
characteristic functions (111): A167393 A000009 A167377 range of A000009
characteristic functions (112): A168046 A052382 A011540 zerofree numbers
characteristic functions (113): A166486 A042968 A008586 not a multiple of 4
characteristic functions (114): A011558 A047201 A008587 coprime to 5
characteristic functions (115): A097325 A047253 A008588 not a multiple of 6
characteristic functions (116): A109720 A047304 A008589 coprime to 7
characteristic functions (117): A168181 A047592 A008590 not a multiple of 8
characteristic functions (118): A168182 A168183 A008591 not a multiple of 9
characteristic functions (119): A168184 A067251 A008592 not a multiple of 10
characteristic functions (120): A145568 A160542 A008593 coprime to 11
characteristic functions (121): A168185 A168186 A008594 not a multiple of 12
characteristic functions (122): A054521 A169581 A169581

characters of groups: A005368
characters, see also under symmetric group
Chebycheff is spelled Chebyshev throughout
Chebychev is spelled Chebyshev throughout
Chebyshev function theta(n): A035158, A057872, A083535
Chebyshev polynomials , sequences related to :

Chebyshev polynomials of the first kind (T- or C- polynomials) ( 1): A001792, A001793, A001794, A002698, A005583, A005584, A006974, A006975, A006976, A007701, A008310, A008311
Chebyshev polynomials of the first kind (T- or C- polynomials) ( 2): A020537, A020538, A020539, A039991, A053120, A001105, A002415, A002492, A005585, A040977, A050486, A008314
Chebyshev polynomials of the first kind (T- or C- polynomials) ( 3): A053347, A054322, A054323, A054324, A054325, A054326, A054327, A054328, A054329, A054330, A054331, A054332
Chebyshev polynomials of the first kind (T- or C- polynomials) ( 4): A054333, A054334, A001653, A070997, A001091, A072256, A001075, A001541, A005248, A003501, A056854, A056918
Chebyshev polynomials of the first kind (T- or C- polynomials) ( 5): A057076, A001079, A023038, A011943, A023039, A001081, A001085, A077235, A077236, A077237, A077238, A077239
Chebyshev polynomials of the first kind (T- or C- polynomials) ( 6): A077240, A077242, A077244, A077246, A077248, A077250, A077409, A077411, A001570, A001835, A056771, A077417
Chebyshev polynomials of the first kind (T- or C- polynomials) ( 7): A077420, A077422, A077424, A077428, A078356, A078363, A078365, A078367, A078369, A000129, A001333, A001076
Chebyshev polynomials of the first kind (T- or C- polynomials) ( 8): A001077, A005667, A005668, A041025, A078986
Chebyshev polynomials of the first kind (T- or C- polynomials) ( 9): A090733, A090248, A090251, A001519, A097308-A097316, A097725-A097742, A097765-A097784, A097826-A097835
Chebyshev polynomials of the first kind (T- or C- polynomials) (10): A090729, A090731, A097837, A097838, A097840-A097845, A098244, A098246, A098247
Chebyshev polynomials of the first kind (T- or C- polynomials) (11): A098249, A098250, A098252, A098253, A098255, A098256, A098258, A098259, A098261, A098262, A098291, A098292, A078070, A004146, A007877, A054493, A011655, A011655, A049683
Chebyshev polynomials of the first kind (T- or C- polynomials) (12): A098249, A049684, A095004, A098296-A098299, A098300-A098310, A005386, A092936, A099270-A099273, A099275-A099279, A099365-A099374, A099368, A099397, A001108, A007598, A079291
Chebyshev polynomials of the second kind (U- or S- polynomials) ( 1): A001787, A001788, A001789, A002605, A003472, A008312, A008313, A008315, A010892, A020540, A020541, A020542
Chebyshev polynomials of the second kind (U- or S- polynomials) ( 2): A030195, A030191, A030221, A030192, A030240, A049310, A049347, A053117, A053118, A053119, A053121, A002700
Chebyshev polynomials of the second kind (U- or S- polynomials) ( 3): A053122, A051323, A053124, A053125, A053126, A053127, A053128, A053129, A053130, A053131, A001653, A001109
Chebyshev polynomials of the second kind (U- or S- polynomials) ( 4): A054450, A001090, A001353, A018913, A004187, A004254, A004189, A001834, A002878, A002315, A056594
Chebyshev polynomials of the second kind (U- or S- polynomials) ( 5): A057076, A057077, A057078, A057079, A057080, A057081, A001906, A056854, A056918
Chebyshev polynomials of the second kind (U- or S- polynomials) ( 6): A057083, A057084, A057085, A057086, A057087, A057088, A057089, A057090, A057091, A057092, A057093, A057094
Chebyshev polynomials of the second kind (U- or S- polynomials) ( 7): A025170, A025171, A004190, A001653, A070997, A001091, A072256, A054320, A004189, A001075, A005248, A003501
Chebyshev polynomials of the second kind (U- or S- polynomials) ( 8): A054491, A054488, A023038, A004191, A007655, A011943, A049660, A023039, A001081, A001085, A075843, A077234
Chebyshev polynomials of the second kind (U- or S- polynomials) ( 9): A077237, A077413, A077241, A077243, A077245, A077247, A077249, A077251, A077410, A077412
Chebyshev polynomials of the second kind (U- or S- polynomials) (10): A028230, A001835, A029547, A046176, A029548, A077416, A077418, A077420, A077421, A077422, A077423
Chebyshev polynomials of the second kind (U- or S- polynomials) (11): A077424, A077428, A078356, A078362, A078363, A078364, A078365, A078366, A078367, A078368, A078369
Chebyshev polynomials of the second kind (U- or S- polynomials) (12): A000129, A001333, A001076, A001077, A005667, A005668, A041025, A078986, A078987
Chebyshev polynomials of the second kind (U- or S- polynomials) (13): A092499, A090733, A090248, A090251, A001519, A078922, A092521, A092420, A076765, A076139, A049664
Chebyshev polynomials of the second kind (U- or S- polynomials) (14): A097726, A097727, A097729, A097730, A097732, A097733, A097735, A097736, A097738, A097739, A097741, A097742, A097766, A097767, A097769, A097770
Chebyshev polynomials of the second kind (U- or S- polynomials) (15): A090729, A090731, A097834-A097845, A098244-A098263, A098291, A098292, A078070, A004146, A007877, A099368, A041041, A052918, A054413, A054493, A098301, A007805, A049629
Chebyshev polynomials: see also A002680

checkers, sequences related to :

checkers: A055213, A133046, A133047

Chernoff sequence: A006939*, A051357
chess, number of games , sequences related to :

chess, number of games, definition: position = position with castling and en passant information, diagram = position without castling and en passant information
chess, number of games: A048987*, A079485, A006494, A089956
chess, number of games: see also A007747, A007545, A007577
chess, number of diagrams: A019319*, A090051
chess, number of positions: A083276*, A057745, A089957

chessboard, halving a: A003155
chessboard, quartering a: A006067, A003213
chessboard, number of squares: A000330
Chinese: see also Index entries for sequences related to number of letters in n
chord diagrams, sequences related to :

chord diagrams: (1) A007293, A007473, A007474, A007769, A014595, A018191, A018192, A018193, A018225, A022489, A022490, A022491, A022492
chord diagrams: (2) A022493, A022494, A054499, A054938

chords in a circle: A001006, A054726, A006533, A000124
chords in a circle: see also Poonen-Rubinstein paper
Chowla sequence: see Mian-Chowla sequences
Chowla's function: sum of divisors excluding 1 and n: A048050*, A002954
chromatic number of graphs: A006670, A006671
chromatic number of surface: A000703*, A000934*, A059103
Chvatal conjecture, sequences related to :

Chvatal conjecture: A007008

circle of differences problem: A065677, A065678, A045794
circle problem: A057655*
circle product: A101330
circles, number of ways of arranging: A000081
circuits: A002631, A002632


[ Aa | Ab | Al | Am | Ap | Ar | Ba | Be | Bi | Bl | Bo | Br | Ca | Ce | Ch | Cl | Coa | Coi | Com | Con | Cor | Cu | Cy | Da | De | Di | Do | Ea | Ed | El | Eu | Fa | Fe | Fi | Fo | Fu | Ga | Ge | Go | Gra | Gre | Ha | He | Ho | Ia | In | J | K | La | Lc | Li | Lo | Lu | M | Mag | Map | Mat | Me | Mo | Mu | N | Na | Ne | Ni | No | Nu | O | Pac | Par | Pas | Pea | Per | Ph | Poi | Pol | Pos | Pow | Pra | Pri | Pro | Ps | Qua | Que | Ra | Rea | Rel | Res | Ro | Ru | Sa | Se | Si | Sk | So | Sp | Sq | St | Su | Sw | Ta | Te | Th | To | Tra | Tri | Tu | U | V | Wa | We | Wi | X | Y | Z | 1 | 2 | 3 | 4 ]


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