A063155 Dimension of the space of weight 2n cusp forms for Gamma_0( 87 ).

9, 28, 48, 68, 88, 108, 128, 148, 168, 188, 208, 228, 248, 268, 288, 308, 328, 348, 368, 388, 408, 428, 448, 468, 488, 508, 528, 548, 568, 588, 608, 628, 648, 668, 688, 708, 728, 748, 768, 788, 808, 828, 848, 868, 888, 908, 928, 948, 968

Offset

1,1

Links

Table of n, a(n) for n=1..49.

William A. Stein, Dimensions of the spaces S_k(Gamma_0(N)).

William A. Stein, The modular forms database

Formula

Conjectures from Colin Barker, Nov 08 2017: (Start)

G.f.: x*(1 + x)*(9 + x) / (1 - x)^2.

a(n) = 4*(5*n-3) for n>1.

a(n) = 2*a(n-1) - a(n-2) for n>3.

(End)

Crossrefs

Sequence in context: A246750 A015245 A031308 * A366863 A135705 A321559

Adjacent sequences: A063152 A063153 A063154 * A063156 A063157 A063158

Keyword

nonn

Author

N. J. A. Sloane, Jul 08 2001

Status

approved