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 A382948 #9 Apr 11 2025 10:22:39
%S A382948 1,0,2,18,50,190,536,1644,4432,12876,33560,89118,227734,572578,
%T A382948 1409602,3424996,8150818,19152532,44455758,101565172,229712612,
%U A382948 513207144,1134650028,2481664146,5379539720,11545719858,24574548632,51855844492,108559596182
%N A382948 a(n) = [(x*y)^n] Product_{k>=1} (1 + x^k + y^k)^k.
%H A382948 Vaclav Kotesovec, <a href="/A382948/b382948.txt">Table of n, a(n) for n = 0..200</a>
%t A382948 Table[SeriesCoefficient[Product[(1 + x^k + y^k)^k, {k, 1, n}], {x, 0, n}, {y, 0, n}], {n, 0, 28}]
%Y A382948 Cf. A026007, A365662.
%K A382948 nonn
%O A382948 0,3
%A A382948 _Ilya Gutkovskiy_, Apr 09 2025