a(n) = Sum_{k=0..n} binomial(n,k)*n^(n-k)*A000110(k).

A134980

a(n) = Sum_{k=0..n} binomial(n,k)*n^(n-k)*A000110(k).

Terms

    a(0) =1a(1) =2a(2) =10a(3) =77a(4) =799a(5) =10427a(6) =163967a(7) =3017562a(8) =63625324a(9) =1512354975a(10) =40012800675

External references