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A367199
E.g.f. satisfies A(x) = (1 + x*A(x))^(A(x)^3).
2
1, 1, 8, 141, 3852, 143460, 6780642, 388851960, 26235133992, 2036243259648, 178742696099040, 17509589369568648, 1893647907646728120, 224106838102512869400, 28809018473999642686584, 3997516614926297143604760, 595518793080901690966354368
OFFSET
0,3
FORMULA
a(n) = Sum_{k=0..n} (n+3*k+1)^(k-1) * Stirling1(n,k).
PROG
(PARI) a(n) = sum(k=0, n, (n+3*k+1)^(k-1)*stirling(n, k, 1));
CROSSREFS
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Nov 10 2023
STATUS
approved