A316746 Stirling transform of (n!)^4.
1, 1, 17, 1345, 339665, 210710401, 271870642577, 650913939232705, 2661046752028004945, 17435564825332632384001, 174183504568184377604440337, 2548324287404285657814061145665, 52811730527246707443094397271926225, 1507674139289925506595856944935243164801
Offset: 0
Keywords
Links
- Eric Weisstein's World of Mathematics, Stirling Transform.
Programs
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Mathematica
Table[Sum[StirlingS2[n, k]*k!^4, {k, 0, n}], {n, 0, 20}]
Formula
a(n) = Sum_{k=0..n} stirling2(n,k) * (k!)^4.
a(n) ~ n!^4.