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 A336294 #5 Jul 17 2020 00:36:23
%S A336294 1,1,1,28,257,103126,46667437282,140776183474585,38414859209967468545,
%T A336294 8006615289848673023223926602,
%U A336294 100856872226698664486645150126408916015626,7425498079138047573566961707334890995112470771975
%N A336294 a(n) = (n!)^n * [x^n] Product_{k>=1} (1 + x^k/(k!)^n).
%t A336294 Table[(n!)^n SeriesCoefficient[Product[(1 + x^k/(k!)^n), {k, 1, n}], {x, 0, n}], {n, 0, 11}]
%Y A336294 Cf. A007837, A183229, A183230, A215910.
%K A336294 nonn
%O A336294 0,4
%A A336294 _Ilya Gutkovskiy_, Jul 16 2020