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 A320140 #13 Oct 07 2018 14:34:39 %S A320140 1,2,2,6,6,6,16,8,14,26,8,32,26,8,40,16,22,40,22,32,46,40,24,48,40,42, %T A320140 72,50,32,64,56,28,74,48,60,112,78,24,72,76,40,144,48,48,120,50,52,48, %U A320140 70,98,150,128,40,84,128,52,176,120,56,208,96,72,92,72,102,192,156 %N A320140 Number of integer solutions to a^2 + 2*b^2 + 3*c^2 + 5*d^2 = n. %C A320140 a(n) > 0 for n >= 0. %H A320140 Seiichi Manyama, <a href="/A320140/b320140.txt">Table of n, a(n) for n = 0..10000</a> %F A320140 G.f.: theta_3(q) * theta_3(q^2) * theta_3(q^3) * theta_3(q^5). %Y A320140 Cf. A320138, A320139, A033712, A320188, A320189, A320190, A320191. %K A320140 nonn %O A320140 0,2 %A A320140 _Seiichi Manyama_, Oct 06 2018