%I #10 Aug 22 2019 12:18:12
%S 9,28,48,68,88,108,128,148,168,188,208,228,248,268,288,308,328,348,
%T 368,388,408,428,448,468,488,508,528,548,568,588,608,628,648,668,688,
%U 708,728,748,768,788,808,828,848,868,888,908,928,948,968
%N Dimension of the space of weight 2n cusp forms for Gamma_0( 87 ).
%H William A. Stein, <a href="http://wstein.org/Tables/dimskg0n.gp">Dimensions of the spaces S_k(Gamma_0(N))</a>.
%H William A. Stein, <a href="http://wstein.org/Tables/">The modular forms database</a>
%F Conjectures from _Colin Barker_, Nov 08 2017: (Start)
%F G.f.: x*(1 + x)*(9 + x) / (1 - x)^2.
%F a(n) = 4*(5*n-3) for n>1.
%F a(n) = 2*a(n-1) - a(n-2) for n>3.
%F (End)
%K nonn
%O 1,1
%A _N. J. A. Sloane_, Jul 08 2001
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