A063153 - OEIS

%I #10 Aug 22 2019 12:18:12

%S 7,26,42,62,78,98,114,134,150,170,186,206,222,242,258,278,294,314,330,

%T 350,366,386,402,422,438,458,474,494,510,530,546,566,582,602,618,638,

%U 654,674,690,710,726,746,762,782,798,818,834,854,870,890

%N Dimension of the space of weight 2n cusp forms for Gamma_0( 85 ).

%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_, Jun 10 2019: (Start)

%F G.f.: x*(7 + 19*x + 9*x^2 + x^3) / ((1 - x)^2*(1 + x)).

%F a(n) = a(n-1) + a(n-2) - a(n-3) for n>4.

%F a(n) = ((-1)^n + 18*n - 11) for n>1.

%F (End)

%K nonn

%O 1,1

%A _N. J. A. Sloane_, Jul 08 2001