OFFSET
0,3
LINKS
Seiichi Manyama, Table of n, a(n) for n = 0..106
FORMULA
a(n) = n! * A190833(n).
a(n) = Integral_{0..infinity} (x - 2 * x^2 + x^3 - 1/6 * x^4 + 1/120 * x^5)^n * exp(-x) dx.
MATHEMATICA
a[n_] := Integrate[(x - 2 * x^2 + x^3 - 1/6 * x^4 + 1/120 * x^5)^n * Exp[-x], {x, 0, Infinity}]; Array[a, 10, 0] (* Stefano Spezia, Nov 27 2018 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Nov 27 2018
STATUS
approved