a(n) = Sum_{k=1..n} n! * n^(n-k+1) / (n-k)!.
A036360
a(n) = Sum_{k=1..n} n! * n^(n-k+1) / (n-k)!.
Terms
- a(0) =0a(1) =1a(2) =12a(3) =153a(4) =2272a(5) =39225a(6) =776736a(7) =17398969a(8) =435538944a(9) =12058401393a(10) =366021568000
External references
- oeis: A036360