OFFSET
0,4
LINKS
Seiichi Manyama, Table of n, a(n) for n = 0..449
MATHEMATICA
With[{nn=30}, CoefficientList[Series[1/Product[(1+x^k/k!)^k, {k, nn}], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, May 12 2018 *)
PROG
(PARI) N=66; x='x+O('x^N); Vec(serlaplace(1/prod(k=1, N, (1+x^k/k!)^k)))
CROSSREFS
KEYWORD
sign
AUTHOR
Seiichi Manyama, Nov 01 2017
STATUS
approved