387480969

Appears in sequences

• E.g.f.: Sum_{n>=1} LambertW(x^n)^n / (1 + LambertW(x^n)) / n!.at n=8A265268
• E.g.f.: Sum_{n>=0} (n*y + x^n)^n / n! - Sum_{n>=0} n^n*y^n / n! at y=1.at n=8A265270