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Index to OEIS: Section Ha

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Index to OEIS: Section Ha


[ 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 ]


h.c.p. (hexagonal close packing), sequences related to :

h.c.p., coordination sequence: A007899
h.c.p., crystal ball sequence: A007202
h.c.p., numbers represented by: A005870
h.c.p., theta series of: A004012*, A005871, A005872, A005873, A005874, A005888, A005889, A005890
h.c.p.: see also A019298

Hadamard matrices , etc., sequences related to :

Hadamard matrices, equivalence classes of: A007299, A036297 (equivalence classes under row/column permutation and negation); A096201 (equivalence classes under row/column permutation and negation, and transposition)
Hadamard matrices, equivalent to transpose: A206704, A206705 (equivalence classes which contain the transpose)
Hadamard matrices, excess of: A004118
Hadamard matrices, largest automorphism group: A206707
Hadamard matrices, mass of: A048615*/A048616*
Hadamard matrices, number of: A007299*, A036297*, total number: A206711, A206712 (all Hadamard matrices regardless of equivalence)
Hadamard matrices, orders of: A019442
Hadamard matrices, regular: see A016742
Hadamard matrices, 2-designs: A001111 (2-(4*n-1,2*n-1,n-1) symmetric designs)
Hadamard matrices, 3-designs: A048885 (3-(4*n,2*n,n-1) designs, aka OA(4*n,4*n-1,2,2))
Hadamard maximal determinant problem: A003432*, A003433, A036297, A051753
Hadamard maximal determinant problem: see also determinants, maximal

half-totient function: A023022
Halving:: A003155, A006577
Hamilton , sequences related to :

Hamilton cycles, paths, graphs: see graphs, Hamiltonian
Hamilton numbers: A000905*, A002090, A006719
Hamiltonian cycles: see graphs, Hamiltonian
Hamiltonian graphs: see graphs, Hamiltonian
Hamiltonian paths or cycles on the n-cube: see also Gray codes
Hamiltonian paths: see graphs, Hamiltonian
Hamiltonian polyhedra: see graphs, Hamiltonian

Hamming sequence: A051037
Hankel function: A002514
Hannah Rollman's numbers: A048992*
Hanoi, see Towers of Hanoi
happy factorizations: A007696, A007697, A007698
happy numbers: A007770*, A038497, A001273
happy numbers: see also A031177, A068571, A046519, A035502, A035503, A055629
Harary and Palmer, Graphical Enumeration, sequences found in
hard-hexagon model: A007236
harmonic , sequences related to :

harmonic coefficients, triangle of: A027858
harmonic means: (1) A001599 A001600 A006086 A006087 A007340 A046793 A046794 A046795 A046796 A046797 A053626 A053627
harmonic means: (2) A053628 A053629 A055081 A056136
harmonic numbers: A001599*, A001008*/A002805*, A035527
harmonic numbers: see also A001600, A008380, A035047 A035048 A046024 A051046 A052488 A055573
harmonic series, odd: A074599/A025547
harmonic series: A002387*, A004080*
harmonic series: see also A004796, A004980
harmonic triangle of Leibniz: A003506*
harmonic triangle of Leibniz: see also A002457 A007622 A046200 A046201 A046202 A046203 A046204 A046205 A046206 A046207 A046208 A046212

Harshad numbers: A005349*
Harvey Friedman's sequence: see A014221
Hauptmodul series: A007325
Havender tableaux: A007345
HCF (highest common factor) is written as GCD (greatest common divisor) in the OEIS
hcf (highest common factor) is written as GCD (greatest common divisor) in the OEIS
HCF: the canonical spelling in the OEIS is GCD (nor HCF or gcd) for "greatest common divisor"
hcf: the canonical spelling in the OEIS is GCD (nor hcf or gcd) for "greatest common divisor"
hcp: see h.c.p


[ 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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