OFFSET
0,3
LINKS
Eric Weisstein's World of Mathematics, Lambert W-Function.
FORMULA
E.g.f.: exp( -LambertW(-x^2 * (exp(x) - 1)) / x^2 ).
E.g.f.: Sum_{k>=0} (k*x^2 + 1)^(k-1) * (exp(x) - 1)^k / k!.
PROG
(PARI) my(N=30, x='x+O('x^N)); Vec(serlaplace(exp(-lambertw(-x^2*(exp(x)-1))/x^2)))
CROSSREFS
KEYWORD
nonn
AUTHOR
Seiichi Manyama, May 04 2023
STATUS
approved