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 A321457 #7 Nov 10 2018 10:16:33 %S A321457 1,0,0,1,0,0,1,0,0,2,0,1,2,0,2,2,0,3,3,1,4,4,2,5,4,3,7,7,5,9,10,7,11, %T A321457 14,9,15,19,12,22,23,17,30,29,23,41,37,32,54,46,45,68,59,63,85,79,85, %U A321457 107,103,108,136,136,139,174,177,178,222,225,226,287,282,290 %N A321457 Expansion of Product_{1 <= i <= j <= k} (1 + x^(i^2 + j^2 + k^2)). %F A321457 G.f.: Product_{k>0} (1 + x^k)^A025427(k). %Y A321457 Cf. A025427, A321429, A321435, A321458, A321459. %K A321457 nonn %O A321457 0,10 %A A321457 _Seiichi Manyama_, Nov 10 2018