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 A321458 #7 Nov 10 2018 10:16:42
%S A321458 1,0,0,-1,0,0,-1,0,0,0,0,-1,0,0,0,2,0,1,-1,-1,2,0,0,1,0,3,-3,-1,1,-1,
%T A321458 4,-1,1,0,-5,1,-1,0,0,-1,5,-2,-7,-1,-1,5,0,0,2,-5,-2,-3,1,3,-3,5,1,-3,
%U A321458 -8,-4,16,1,4,-1,2,4,-17,4,5,2,10,-6,10,-7,-23,18,3,12
%N A321458 Expansion of Product_{1 <= i <= j <= k} (1 - x^(i^2 + j^2 + k^2)).
%F A321458 G.f.: Product_{k>0} (1 - x^k)^A025427(k).
%Y A321458 Cf. A025427, A321432, A321436, A321457, A321459.
%K A321458 sign
%O A321458 0,16
%A A321458 _Seiichi Manyama_, Nov 10 2018