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 A320198 #11 Oct 08 2018 02:42:18 %S A320198 1,2,2,4,4,4,8,8,6,6,10,8,12,20,8,16,28,24,22,24,24,16,40,32,8,30,32, %T A320198 32,36,28,16,32,54,32,32,36,28,52,56,16,26,44,32,60,48,44,40,72,84,46, %U A320198 74,32,72,76,48,80,24,64,92,72,52,52,96,64,92,84,32,92,96 %N A320198 Number of integer solutions to a^2 + 2*b^2 + 4*c^2 + 10*d^2 = n. %C A320198 a(n) > 0 for n >= 0. %H A320198 Seiichi Manyama, <a href="/A320198/b320198.txt">Table of n, a(n) for n = 0..10000</a> %F A320198 G.f.: theta_3(q) * theta_3(q^2) * theta_3(q^4) * theta_3(q^10). %Y A320198 Cf. A320193, A320194, A320195, A320196, A033720, A320197, A320199, A320200, A320201, A320202. %K A320198 nonn %O A320198 0,2 %A A320198 _Seiichi Manyama_, Oct 07 2018