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 A022623 #14 Feb 15 2018 08:12:33
%S A022623 1,-28,378,-3304,21259,-108892,469630,-1778536,6096125,-19303088,
%T A022623 57249374,-160633424,429762354,-1103189388,2730461208,-6542033848,
%U A022623 15223719392,-34504452668,76349114366,-165267288816,350579820199,-729912979244,1493568080228,-3007227042624,5964244118126
%N A022623 Expansion of Product_{m>=1} (1+q^m)^(-28).
%H A022623 G. C. Greubel, <a href="/A022623/b022623.txt">Table of n, a(n) for n = 0..1000</a>
%F A022623 a(n) ~ (-1)^n * 7^(1/4) * exp(Pi*sqrt(14*n/3)) / (2 * 6^(1/4) * n^(3/4)). - _Vaclav Kotesovec_, Aug 27 2015
%t A022623 nmax = 50; CoefficientList[Series[Product[1/(1 + x^k)^28, {k, 1, nmax}], {x, 0, nmax}], x] (* _Vaclav Kotesovec_, Aug 27 2015 *)
%K A022623 sign
%O A022623 0,2
%A A022623 _N. J. A. Sloane_