OFFSET
0,3
FORMULA
a(n) = A094422(n - 1) + 1.
MAPLE
p := n -> local k; add(k!*Stirling2(n, k)*x^k, k = 0..n):
a := n -> local j; add(subs(x = j, p(n - j)), j = 0..n):
seq(a(n), n = 0..21);
CROSSREFS
KEYWORD
nonn
AUTHOR
Peter Luschny, Apr 28 2024
STATUS
approved