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 A321377 #13 Nov 08 2018 10:14:11
%S A321377 1,0,0,0,-1,0,-1,0,-1,-1,0,0,-1,1,1,0,1,1,1,1,2,1,3,0,2,-1,1,0,1,-1,
%T A321377 -2,-2,-3,0,-3,-4,-3,-4,-6,1,-6,-1,-4,-2,0,0,-2,2,1,1,1,6,5,6,8,7,8,8,
%U A321377 9,9,9,8,11,0,6,6,7,3,6,-10,1,-7,-6,-7,-6,-18,-10,-21,-13,-14
%N A321377 Expansion of Product_{1 < i <= j} (1 - x^(i*j)).
%H A321377 Seiichi Manyama, <a href="/A321377/b321377.txt">Table of n, a(n) for n = 0..10000</a>
%F A321377 G.f.: Product_{k>0} (1 - x^k)^(A038548(k) - 1).
%Y A321377 Convolution inverse of A182270.
%Y A321377 Cf. A038548, A211857, A321299, A321376.
%K A321377 sign
%O A321377 0,21
%A A321377 _Seiichi Manyama_, Nov 08 2018