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 A320195 #11 Oct 08 2018 05:37:22 %S A320195 1,2,2,4,4,4,10,12,10,14,16,12,24,28,12,20,28,16,26,36,8,24,48,24,30, %T A320195 42,28,40,72,28,32,60,34,60,64,24,28,76,36,56,80,40,60,84,72,52,96,48, %U A320195 72,86,42,80,56,52,82,96,36,72,112,60,120,124,60,84,124,56,96,132,32 %N A320195 Number of integer solutions to a^2 + 2*b^2 + 4*c^2 + 6*d^2 = n. %C A320195 a(n) > 0 for n >= 0. %H A320195 Seiichi Manyama, <a href="/A320195/b320195.txt">Table of n, a(n) for n = 0..10000</a> %F A320195 G.f.: theta_3(q) * theta_3(q^2) * theta_3(q^4) * theta_3(q^6). %Y A320195 Cf. A320193, A320194, A320196, A033720, A320197, A320198, A320199, A320200, A320201, A320202. %K A320195 nonn %O A320195 0,2 %A A320195 _Seiichi Manyama_, Oct 07 2018