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 A320194 #11 Oct 08 2018 04:15:36 %S A320194 1,2,2,4,4,6,12,12,14,14,16,20,24,24,12,24,20,24,34,12,26,36,44,36,40, %T A320194 38,40,80,44,32,44,40,54,72,24,24,68,48,76,64,56,48,104,84,40,98,36, %U A320194 84,104,50,58,56,84,104,112,76,48,120,120,92,128,60,80,132,76,96 %N A320194 Number of integer solutions to a^2 + 2*b^2 + 4*c^2 + 5*d^2 = n. %C A320194 a(n) > 0 for n >= 0. %H A320194 Seiichi Manyama, <a href="/A320194/b320194.txt">Table of n, a(n) for n = 0..10000</a> %F A320194 G.f.: theta_3(q) * theta_3(q^2) * theta_3(q^4) * theta_3(q^5). %Y A320194 Cf. A320193, A320195, A320196, A033720, A320197, A320198, A320199, A320200, A320201, A320202. %K A320194 nonn %O A320194 0,2 %A A320194 _Seiichi Manyama_, Oct 07 2018