E.g.f.: Sum_{n>=0} (2^n*x + LambertW(x))^n / n!.

A386655

E.g.f.: Sum_{n>=0} (2^n*x + LambertW(x))^n / n!.

Terms

    a(0) =1a(1) =3a(2) =23a(3) =708a(4) =82677a(5) =39043808a(6) =75384175459

External references