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 A022609 #12 Apr 05 2017 09:50:10
%S A022609 1,-14,91,-378,1197,-3290,8386,-20008,44800,-95578,196679,-391692,
%T A022609 756798,-1424934,2624119,-4735878,8388919,-14611226,25065397,
%U A022609 -42400456,70790195,-116765126,190454404,-307408346,491306907
%N A022609 Expansion of Product_{m>=1} (1+q^m)^(-14).
%H A022609 Seiichi Manyama, <a href="/A022609/b022609.txt">Table of n, a(n) for n = 0..10000</a>
%F A022609 a(n) ~ (-1)^n * 7^(1/4) * exp(Pi*sqrt(7*n/3)) / (2^(3/2) * 3^(1/4) * n^(3/4)). - _Vaclav Kotesovec_, Aug 27 2015
%F A022609 a(0) = 1, a(n) = -(14/n)*Sum_{k=1..n} A000593(k)*a(n-k) for n > 0. - _Seiichi Manyama_, Apr 05 2017
%t A022609 nmax = 50; CoefficientList[Series[Product[1/(1 + x^k)^14, {k, 1, nmax}], {x, 0, nmax}], x] (* _Vaclav Kotesovec_, Aug 27 2015 *)
%K A022609 sign
%O A022609 0,2
%A A022609 _N. J. A. Sloane_