OFFSET
0,9
LINKS
Seiichi Manyama, Table of n, a(n) for n = 0..592
FORMULA
a(0) = 1; a(n) = -Sum_{k=4..n} binomial(n-1,k-1) * a(n-k). - Ilya Gutkovskiy, Nov 20 2020
MATHEMATICA
With[{nn=30}, CoefficientList[Series[Exp[1+x+x^2/2!+x^3/3!-Exp[x]], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Oct 19 2022 *)
PROG
(PARI) my(x='x+O('x^66)); Vec(serlaplace(exp(-exp(x)+1+x+x^2/2+x^3/6)))
CROSSREFS
KEYWORD
sign
AUTHOR
Seiichi Manyama, Sep 28 2017
STATUS
approved