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 A063212 #11 Aug 22 2019 12:18:12
%S A063212 1,3,3,7,7,9,11,13,13,17,17,19,21,23,23,27,27,29,31,33,33,37,37,39,41,
%T A063212 43,43,47,47,49,51,53,53,57,57,59,61,63,63,67,67,69,71,73,73,77,77,79,
%U A063212 81,83
%N A063212 Dimension of the space of weight 2n cuspidal newforms for Gamma_0( 44 ).
%H A063212 William A. Stein, <a href="http://wstein.org/Tables/dimskg0new.gp">Dimensions of the spaces S_k^{new}(Gamma_0(N))</a>
%H A063212 William A. Stein, <a href="http://wstein.org/Tables/">The modular forms database</a>
%H A063212 <a href="/index/Rec#order_05">Index entries for linear recurrences with constant coefficients</a>, signature (0,1,1,0,-1).
%F A063212 a(n) = a(n-2)+a(n-3)-a(n-5). G.f.: x*(1 +3*x +2*x^2 +3*x^3 +x^4)/((1 -x)^2*(1 +x)*(1 +x +x^2)). [_Colin Barker_, Sep 27 2012]
%K A063212 nonn
%O A063212 1,2
%A A063212 _N. J. A. Sloane_, Jul 10 2001