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 A022705 #9 Jul 20 2018 06:03:43
%S A022705 1,-13,65,-156,273,-1014,3497,-6539,12116,-39819,99086,-178009,395044,
%T A022705 -988651,2103335,-4237363,8806967,-19098131,40962220,-80207062,
%U A022705 158661230,-337459980,681006807,-1307462312,2595164702
%N A022705 Expansion of Product_{m>=1} (1+m*q^m)^-13.
%H A022705 G. C. Greubel, <a href="/A022705/b022705.txt">Table of n, a(n) for n = 0..1000</a>
%t A022705 With[{nmax = 50}, CoefficientList[Series[Product[(1 + k*q^k)^-13, {k, 1, nmax}], {q, 0, nmax}], q]] (* _G. C. Greubel_, Jul 20 2018 *)
%o A022705 (PARI) m=50; q='q+O('q^m); Vec(prod(n=1,m,(1+n*q^n)^-13)) \\ _G. C. Greubel_, Jul 20 2018
%K A022705 sign
%O A022705 0,2
%A A022705 _N. J. A. Sloane_