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 A033743 #8 Oct 10 2018 08:20:26
%S A033743 1,2,0,0,2,0,0,0,0,2,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,2,0,0,0,0,0,2,4,0,
%T A033743 0,4,2,0,0,0,4,0,0,0,0,0,0,4,0,2,0,0,0,0,0,0,4,0,0,0,0,0,0,0,2,0,0,4,
%U A033743 0,0,0,0,0,0,0,0,0,0,0,0,4
%N A033743 Expansion of Product_{d | 31} theta_3(q^d).
%D A033743 J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p 102 eq 9.
%H A033743 Seiichi Manyama, <a href="/A033743/b033743.txt">Table of n, a(n) for n = 0..10000</a>
%K A033743 nonn
%O A033743 0,2
%A A033743 _N. J. A. Sloane_