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 A320153 #11 Oct 08 2018 03:49:19 %S A320153 1,2,4,8,6,8,8,2,16,18,24,36,24,24,16,24,26,32,60,40,40,48,8,12,56,34, %T A320153 72,80,34,44,24,64,44,80,96,48,102,60,40,72,72,80,144,84,52,104,40,96, %U A320153 120,82,92,96,120,76,80,80,84,120,136,120,72,120,64,194,102 %N A320153 Number of integer solutions to a^2 + 2*b^2 + 2*c^2 + 7*d^2 = n. %C A320153 a(n) > 0 for n >= 0. %H A320153 Seiichi Manyama, <a href="/A320153/b320153.txt">Table of n, a(n) for n = 0..10000</a> %F A320153 G.f.: theta_3(q) * theta_3(q^2)^2 * theta_3(q^7). %Y A320153 Cf. A320149, A320150, A236924, A320151, A320152. %K A320153 nonn %O A320153 0,2 %A A320153 _Seiichi Manyama_, Oct 06 2018