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A357011
E.g.f. satisfies A(x) * log(A(x)) = exp(x * A(x)^3) - 1.
1
1, 1, 6, 74, 1407, 36357, 1190476, 47254783, 2205546706, 118378505742, 7184030384361, 486440226752911, 36358328607088010, 2973464028723984551, 264119772408892921774, 25321946948812001539166, 2606224408648404660237647, 286624141573198517220290837
OFFSET
0,3
LINKS
FORMULA
a(n) = Sum_{k=0..n} (3*n-k+1)^(k-1) * Stirling2(n,k).
PROG
(PARI) a(n) = sum(k=0, n, (3*n-k+1)^(k-1)*stirling(n, k, 2));
CROSSREFS
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Sep 08 2022
STATUS
approved