OFFSET
0,3
LINKS
Seiichi Manyama, Table of n, a(n) for n = 0..425
FORMULA
a(0) = 1 and a(n) = -(n-1)! * Sum_{k=1..n} A055225(k)*a(n-k)/(n-k)! for n > 0.
E.g.f.: exp(-Sum_{k>=1} Sum_{j>=1} j^(k-1)*x^(j*k)/k). - Ilya Gutkovskiy, May 28 2018
PROG
(PARI) N=66; x='x+O('x^N); Vec(serlaplace(prod(k=1, N, (1-k*x^k)^(1/k))))
CROSSREFS
KEYWORD
sign
AUTHOR
Seiichi Manyama, Oct 31 2017
STATUS
approved