E.g.f.: Product_{n>=1} Sum_{k>=0} (x^k/k!)^n.
A182666
E.g.f.: Product_{n>=1} Sum_{k>=0} (x^k/k!)^n.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =13a(4) =67a(5) =471a(6) =3591a(7) =33573a(8) =329043a(9) =3919387a(10) =47827093a(11) =663429603a(12) =9764977399a(13) =156308277139
External references
- oeis: A182666