OFFSET
0,3
LINKS
Vaclav Kotesovec, Table of n, a(n) for n = 0..410
FORMULA
a(n) = Sum_{k=0..n} A022629(k)*Stirling2(n,k)*k!.
MATHEMATICA
nmax = 20; CoefficientList[Series[Product[(1+k*(Exp[x]-1)^k), {k, 1, nmax}], {x, 0, nmax}], x] * Range[0, nmax]!
CROSSREFS
KEYWORD
nonn
AUTHOR
Vaclav Kotesovec, Jul 31 2019
STATUS
approved