This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A063098 #13 Jun 25 2022 21:43:15 %S A063098 3,14,26,38,50,62,74,86,98,110,122,134,146,158,170,182,194,206,218, %T A063098 230,242,254,266,278,290,302,314,326,338,350,362,374,386,398,410,422, %U A063098 434,446,458,470,482,494,506,518,530,542,554,566,578,590 %N A063098 Dimension of the space of weight 2n cusp forms for Gamma_0( 30 ). %H A063098 William A. Stein, <a href="http://wstein.org/Tables/dimskg0n.gp">Dimensions of the spaces S_k(Gamma_0(N))</a>. %H A063098 William A. Stein, <a href="http://wstein.org/Tables/">The modular forms database</a> %F A063098 Conjectures from _Colin Barker_, Jun 09 2019: (Start) %F A063098 G.f.: x*(3 + 8*x + x^2) / (1 - x)^2. %F A063098 a(n) = 2*a(n-1) - a(n-2) for n>3. %F A063098 a(n) = 2*(6*n-5) for n>1. %F A063098 (End) %Y A063098 Conjectured first differences of A126587. %K A063098 nonn %O A063098 1,1 %A A063098 _N. J. A. Sloane_, Jul 08 2001