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 A189489 E.g.f. A(x) satisfies A(x)=x*exp(A(x)*exp(A(x))+A(x)^2*exp(2*A(x))) 0
 1, 4, 39, 604, 12865, 349326, 11538415, 449107688, 20131351425, 1021358296090, 57859311137551, 3620137646441196, 247941397429600225, 18450166102594552886, 1482272087674859722095 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Vladimir Kruchinin, D. V. Kruchinin, Composita and their properties, arXiv:1103.2582 FORMULA a(n)=((n-1)!*sum(k=0..n-1,((k+n)^(n-k-1)*binomial(n,k))/(n-k-1)!)); PROG (Maxima) a(n):=((n-1)!*sum(((k+n)^(n-k-1)*binomial(n, k))/(n-k-1)!, k, 0, n-1)); CROSSREFS Sequence in context: A177775 A192935 A024055 * A178920 A066399 A065760 Adjacent sequences:  A189486 A189487 A189488 * A189490 A189491 A189492 KEYWORD nonn AUTHOR Vladimir Kruchinin, Apr 23 2011 STATUS approved

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Last modified August 7 22:44 EDT 2020. Contains 336279 sequences. (Running on oeis4.)