E.g.f.: Sum_{n>=0} (4^n*x + LambertW(x))^n / n!.
A386657
E.g.f.: Sum_{n>=0} (4^n*x + LambertW(x))^n / n!.
Terms
- a(0) =1a(1) =5a(2) =287a(3) =274532a(4) =4362420261
External references
- oeis: A386657
A386657
E.g.f.: Sum_{n>=0} (4^n*x + LambertW(x))^n / n!.