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 A321335 #14 Jun 24 2022 23:38:21 %S A321335 1,3,10,22,57,115,248,456,906,1598,2956,4980,8802,14422,24440,38856, %T A321335 63881,99515,159106,242654,379609,569971,873696,1290784,1945912, %U A321335 2839080,4213712,6069808,8890264,12675080,18334048,25867168,37011210,51766174,73308548,101638332,142626458 %N A321335 Expansion of 1/(1 - x) * Product_{k>=0} 1/(1 - x^(2^k))^(2^(k+1)). %F A321335 G.f.: A(x) satisfies A(x) = ((1 + x) * A(x^2))^2 / (1 - x), with A(0) = 1. %F A321335 a(n) = A073709(2*n) = A073709(2*n+1) for n >= 0. %Y A321335 Cf. A073708, A073709, A321336. %Y A321335 Partial sums of A073710. %K A321335 nonn %O A321335 0,2 %A A321335 _Seiichi Manyama_, Nov 05 2018