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 A320305 #14 Nov 12 2019 08:11:45
%S A320305 1,2,2,2,4,2,14,2,8,4,2,2,56,2,2,2,26,2,104,2,60,6,14,2,452,4,2,4,68,
%T A320305 2,582,2,74,2,14,2,1460,2,14,6,688,2,782,2,108,176,2,2,5090,4,8,2,108,
%U A320305 2,1640,2,940,6,2,2,38132,2,2,12,364,2,1142,2,100,2,1266,2,62528
%N A320305 a(n) = [q^n] Product_{d | n} theta_3(q^d), where theta_3() is the Jacobi theta function.
%C A320305 Also the number of integer solutions (a_1, a_2, ... , a_{d(n)}) to the equation Sum_{d | n} d * a_d^2 = n, where d(n) is the number of divisors of n.
%H A320305 Seiichi Manyama, <a href="/A320305/b320305.txt">Table of n, a(n) for n = 0..1000</a>
%Y A320305 Cf. A000005, A000122.
%K A320305 nonn
%O A320305 0,2
%A A320305 _Seiichi Manyama_, Oct 10 2018