OFFSET
0,3
FORMULA
a(n) = Sum_{k=0..n} Stirling2(n,k) * A006153(k).
a(n) ~ n! * LambertW(1) / ((1 + LambertW(1))^2 * (log(1 + LambertW(1)))^(n+1)). - Vaclav Kotesovec, Nov 11 2023
PROG
(PARI) my(N=20, x='x+O('x^N)); Vec(serlaplace(1/(1-(exp(x)-1)*exp(exp(x)-1))))
CROSSREFS
KEYWORD
nonn
AUTHOR
Seiichi Manyama, May 10 2023
STATUS
approved