A392923 - OEIS

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A392923

a(n) = Sum_{k=0..n} n^(n - k)*Gamma(k + 1, k + 1)*exp(k + 1). Row sums of A394081.

2

1, 4, 27, 247, 2857, 40096, 663709, 12689405, 275688417, 6717664846, 181612387701, 5398263247411, 175057849310929, 6152218590837892, 232963755170203149, 9456919477429760401, 409710611366940199361, 18869241471992642344306, 920563120444898085931909, 47425073043437748305434839

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OFFSET

0,2

LINKS

Paolo Xausa, Table of n, a(n) for n = 0..385

MATHEMATICA

A392923[n_] := If[n == 0, 1, Sum[n^(n-k)*Gamma[k+1, k+1]*Exp[k+1], {k, 0, n}]];

Array[A392923, 25, 0] (* Paolo Xausa, Apr 10 2026 *)

CROSSREFS

Sequence in context: A212559 A265268 A121063 * A229619 A051863 A000699

Adjacent sequences: A392920 A392921 A392922 * A392926 A392927 A392928

KEYWORD

nonn

AUTHOR

Peter Luschny, Mar 16 2026

STATUS

approved