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 A382959 #11 Apr 24 2025 05:59:00
%S A382959 1,0,0,6,8,130,342,2590,21240,167730,1874930,46128610,417338462,
%T A382959 5163377570,542567363366,3984766703746,42736508056760,681324935577810,
%U A382959 127138303030260258,1011227775808000450,14280379156264610778,276342548314653322270,12566141342987866203746
%N A382959 a(n) = (n!)^2 * [(x*y)^n] Product_{k>=1} (1 + (x^k + y^k)/k!).
%H A382959 Vaclav Kotesovec, <a href="/A382959/b382959.txt">Table of n, a(n) for n = 0..100</a>
%t A382959 Table[(n!)^2 SeriesCoefficient[Product[(1 + (x^k + y^k)/k!), {k, 1, n}], {x, 0, n}, {y, 0, n}], {n, 0, 22}]
%Y A382959 Cf. A007837, A108796, A365662.
%K A382959 nonn
%O A382959 0,4
%A A382959 _Ilya Gutkovskiy_, Apr 10 2025