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 A033730 #8 Oct 08 2018 11:22:15
%S A033730 1,2,2,6,6,4,14,8,6,28,16,20,54,24,24,72,22,32,104,44,72,152,60,56,
%T A033730 158,58,80,234,112,148,304,136,86,308,140,168,512,224,252,560,224,152,
%U A033730 560,220,316,856,320,376,718,322
%N A033730 Expansion of Product_{d | 18} theta_3(q^d).
%D A033730 J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p 102 eq 9.
%H A033730 Seiichi Manyama, <a href="/A033730/b033730.txt">Table of n, a(n) for n = 0..10000</a>
%K A033730 nonn
%O A033730 0,2
%A A033730 _N. J. A. Sloane_