login
A355768
E.g.f. satisfies A(x)^(A(x)^2) = 1 + x*A(x).
1
1, 1, -2, 6, -28, 260, -3948, 71120, -1392368, 29971008, -724981920, 19800726528, -603571233120, 20210951379840, -734663902256256, 28785160833254400, -1210241780559067392, 54390280325210271744, -2602745536670709682176, 132118736078618372579328
OFFSET
0,3
FORMULA
a(n) = Sum_{k=0..n} (n-2*k+1)^(k-1) * Stirling1(n,k).
PROG
(PARI) a(n) = sum(k=0, n, (n-2*k+1)^(k-1)*stirling(n, k, 1));
CROSSREFS
KEYWORD
sign
AUTHOR
Seiichi Manyama, Jul 16 2022
STATUS
approved