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# Index to OEIS: Section Nu

# Index to OEIS: Section Nu

- This is a section of the Index to the
**OEIS®**. - For further information see the main
**Index to OEIS**page. - Please read Index: Instructions For Updating Index to OEIS before making changes to this page.
- If you did not find what you were looking for in this Index, you can always search the database for a particular word or phrase.
- Full list of sections:

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number of positive integers <= 10^n that are divisible by no prime exceeding p: A066343, A100752, A106598, A106600, A107352, A108274, A108275, A108276, A108277

number of primes <= x: A000720*

number of primes <= x: see also pi(x)

number of syllables to represent n: A002810, A045736

number of ways the set (1^k, 2^k, ..., n^k) can be partitioned into two sets of equal sums: k=1 A058377, k=2 A083527, k=3 A113263, k=4 A111253

number of words to represent n: A001167

number theory, unsolved problems in: see unsolved problems in number theory (selected)

numbers congruent to ... mod n: see "congruent to ..."

numbers n such that 2^k + n is prime for all k (empty: see A076336)

numbers n such that n*2^k + 1 is composite for all k: A076336

numbers n such that n*2^k + 1 is prime for all k (empty: see A076336)

numbers n written in bases 1, 2, 3, 4, ...: A000042, A007088, A007089, A007090, ...

numbers of form k_1 k_2 .. k_n (1/k_1 + .. + 1/k_n), k_i >= 1: A025052, A027563, A027564, A027565, A027566, A055745

numbers that contain a 0: A011540

numbers that contain a 1: A011531

numbers that contain a 2: A011532

numbers that contain a 3: A011533

numbers that contain a 4: A011534

numbers that contain a 5: A011535

numbers that contain a 6: A011536

numbers that contain a 7: A011537

numbers that contain a 9: A011539

numbers that contain an 8: A011538

numbers whose cube is a palindrome: A002760

numbers, automorphic: see automorphic numbers

numbers, Bernoulli: see Bernoulli numbers

numbers, Euler: see Euler numbers

numbers, Eulerian: see Euler numbers

numbers, feral: see wild numbers

numbers, Gaussian, see Gaussian integers

numbers, octal: see octal numbers

numbers, perfect: A000396*, A002827* (unitary), A007539 (n-fold)

numbers, tri-perfect: A005820

numbers, triperfect: A005820

numbers, triply perfect: A005820

numbers, wild: see wild numbers

numeri idonei: see Index entries for sequences related to Euler's idoneal numbers

numerus idoneus: see Index entries for sequences related to Euler's idoneal numbers

Nynorsk: A028292

Nynorsk: see also Index entries for sequences related to number of letters in n

n^(n+1): A007778

n^(n-1): A000169*

n^(n-2): A000272*

n^(n-3): A007830

** n^2 == n mod K, sequences related to : **

- n^2 == n mod K: K=1 or 2: A001477, K=3: A032766, K=4: A042948, K=5: A008851, K=6: A032766, K=7: A047274, K=8: A047393, K=9: A090570, K=10: A008851, K=11: A112651, K=12: A112652, K=13: A112653, K=14: A047274, K=15: A151972, K=16: A151977, K=17: A151978, K=19: A151979, K=20: A151980, K=24: A151973, K=30: A151975, K=32: A151983, K=48: A151981, K=64: A151984

n^2-n+41 is prime: A002837

n^n: A000312*, A014566

n^n^...^n, number of distinct values taken by: A002845, A003018, A003019

n_3 configurations: see configurations (combinatorial or geometrical)

n_n: A122618

- This is a section of the Index to the
**OEIS®**. - For further information see the main
**Index to OEIS**page. - Please read Index: Instructions For Updating Index to OEIS before making changes to this page.
- If you did not find what you were looking for in this Index, you can always search the database for a particular word or phrase.
- Full list of sections:

[ 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 ]