E.g.f.: Sum_{n>=0} 3^n * (exp(n*x) - 1)^n / n!.
A326271
E.g.f.: Sum_{n>=0} 3^n * (exp(n*x) - 1)^n / n!.
Terms
- a(0) =1a(1) =3a(2) =39a(3) =948a(4) =34869a(5) =1757163a(6) =114320118a(7) =9226773993a(8) =897658726215
External references
- oeis: A326271
A326271
E.g.f.: Sum_{n>=0} 3^n * (exp(n*x) - 1)^n / n!.