E.g.f.: Sum_{n>=0} (n*y + x^n)^n / n! - Sum_{n>=0} n^n*y^n / n! at y=1.
A265270
E.g.f.: Sum_{n>=0} (n*y + x^n)^n / n! - Sum_{n>=0} n^n*y^n / n! at y=1.
Terms
- a(0) =1a(1) =4a(2) =27a(3) =268a(4) =3125a(5) =47736a(6) =823543a(7) =16938496a(8) =387480969a(9) =10037800000a(10) =285311670611
External references
- oeis: A265270