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 A303445 #11 Apr 25 2018 05:58:06 %S A303445 1,2,130,524588,137440010582,2305843284159782076, %T A303445 2475880083182464573602036628,170141183465420992188660515119769982616, %U A303445 748288838313762576487529438443476930331940262147046 %N A303445 Expansion of Product_{k>=1} ((1 + (8^k*x)^k)/(1 - (8^k*x)^k))^(1/8^k). %H A303445 Seiichi Manyama, <a href="/A303445/b303445.txt">Table of n, a(n) for n = 0..33</a> %F A303445 a(n) ~ 2^(3*n^2 - 3*n + 1). - _Vaclav Kotesovec_, Apr 25 2018 %o A303445 (PARI) N=20; x='x+O('x^N); Vec(prod(k=1, N, ((1+(8^k*x)^k)/(1-(8^k*x)^k))^(1/8^k))) %Y A303445 Cf. A303440, A303444. %K A303445 nonn %O A303445 0,2 %A A303445 _Seiichi Manyama_, Apr 24 2018