a(n) = Sum_{k=0..n} (k+1)^(n-1)*k!*StirlingS2(n,k).
A191908
a(n) = Sum_{k=0..n} (k+1)^(n-1)*k!*StirlingS2(n,k).
Terms
- a(0) =1a(1) =1a(2) =8a(3) =154a(4) =5690a(5) =346366a(6) =31540898a(7) =4022618734a(8) =685081183970
External references
- oeis: A191908