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 A304445 #8 May 13 2018 03:02:24 %S A304445 1,1,10,174,4132,126905,4802046,216313349,11313533064,674172155790, %T A304445 45102830448510,3347925678474168,273085613904116184, %U A304445 24282144087974698445,2337736453663291696624,242272777074973285192935,26892702305505020726198800,3183326728470139531614913088 %N A304445 Coefficient of x^n in Product_{k>=1} (1+x^k)^(n^2). %H A304445 Vaclav Kotesovec, <a href="/A304445/b304445.txt">Table of n, a(n) for n = 0..330</a> %F A304445 a(n) ~ exp(n + 1/2) * n^(n - 1/2) / sqrt(2*Pi). %t A304445 nmax = 20; Table[SeriesCoefficient[Product[(1+x^k)^(n^2), {k, 1, n}], {x, 0, n}], {n, 0, nmax}] %t A304445 nmax = 20; Table[SeriesCoefficient[(QPochhammer[-1, x]/2)^(n^2), {x, 0, n}], {n, 0, nmax}] %Y A304445 Cf. A027998, A270913, A304446. %K A304445 nonn %O A304445 0,3 %A A304445 _Vaclav Kotesovec_, May 12 2018