%I #11 May 02 2023 13:14:47
%S -1,164,356,548,740,932,1124,1316,1508,1700,1892,2084,2276,2468,2660,
%T 2852,3044,3236,3428,3620,3812,4004,4196,4388,4580,4772,4964,5156,
%U 5348,5540,5732,5924,6116,6308,6500,6692,6884,7076,7268,7460
%N Dimension of the space of weight n cuspidal newforms for Gamma_1( 81 ).
%H William A. Stein, <a href="http://wstein.org/Tables/dimskg1new.gp">Dimensions of the spaces S_k^{new}(Gamma_1(N))</a>
%H William A. Stein, <a href="http://wstein.org/Tables/">The modular forms database</a>
%F From _Colin Barker_, Feb 25 2016: (Start)
%F a(n) = 2*a(n-1)-a(n-2) for n>4.
%F G.f.: -x^2*(1-166*x-27*x^2) / (1-x)^2.
%F (End)
%K sign
%O 2,2
%A _N. J. A. Sloane_, Jul 14 2001