E.g.f.: Sum_{n>=0} ((1+x)^n + 1)^n * exp(-x*(1+x)^n) * x^n / n!.
A326427
E.g.f.: Sum_{n>=0} ((1+x)^n + 1)^n * exp(-x*(1+x)^n) * x^n / n!.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =7a(4) =85a(5) =621a(6) =9391a(7) =153763a(8) =2985417a(9) =72857305a(10) =2023660891a(11) =64463660031
External references
- oeis: A326427