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 A262949 #5 Oct 06 2015 16:18:10 %S A262949 1,1,0,0,4,4,0,7,13,6,10,38,32,17,74,103,59,139,266,191,247,593,581, %T A262949 513,1175,1487,1190,2223,3453,2938,4158,7264,7095,8052,14430,16308, %U A262949 16246,27364,35347,34096,50997,72595,72163,94707,142522,151435,178047,270112 %N A262949 Expansion of Product_{k>=1} (1 + x^(3*k-2))^(3*k-2). %H A262949 Alois P. Heinz, <a href="/A262949/b262949.txt">Table of n, a(n) for n = 0..10000</a> %F A262949 a(n) ~ exp(3 * 2^(-4/3) * Zeta(3)^(1/3) * n^(2/3)) * Zeta(3)^(1/6) / (2^(7/12) * sqrt(3*Pi) * n^(2/3)). %t A262949 nmax=60; CoefficientList[Series[Product[(1 + x^(3*k-2))^(3*k-2),{k,1,nmax}],{x,0,nmax}],x] %Y A262949 Cf. A261612, A262879, A262884, A262924, A262948. %K A262949 nonn %O A262949 0,5 %A A262949 _Vaclav Kotesovec_, Oct 05 2015