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 A294470 #10 Nov 01 2017 10:06:45
%S A294470 1,-1,-2,0,6,90,240,2100,1680,-28560,-682080,-7835520,-134497440,
%T A294470 -1059458400,-13047914880,-138646347840,-1130671301760,3558932657280,
%U A294470 93341485036800,7903311136680960,149238605943947520,3997338754242113280,86934078099901992960
%N A294470 E.g.f.: Product_{k>0} (1-x^k/k)^k.
%H A294470 Seiichi Manyama, <a href="/A294470/b294470.txt">Table of n, a(n) for n = 0..451</a>
%o A294470 (PARI) N=66; x='x+O('x^N); Vec(serlaplace(prod(k=1, N, (1-x^k/k)^k)))
%Y A294470 Cf. A292359.
%Y A294470 Cf. A181541, A294469, A294471.
%K A294470 sign
%O A294470 0,3
%A A294470 _Seiichi Manyama_, Oct 31 2017