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A063155
Dimension of the space of weight 2n cusp forms for Gamma_0( 87 ).
0
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
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
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jul 08 2001
STATUS
approved