a(n) = Sum_{k=0..n} (-1)^(n-k)*binomial(n,k)*k!*n^k.
A319392
a(n) = Sum_{k=0..n} (-1)^(n-k)*binomial(n,k)*k!*n^k.
Terms
- a(0) =1a(1) =0a(2) =5a(3) =116a(4) =4785a(5) =307024a(6) =28435285a(7) =3598112580a(8) =596971515329
External references
- oeis: A319392