a(n) = (-1)^(n-1)*(n-1)!*Sum_{i=0..n} Stirling2(n, i) if n > 0 and 0 otherwise.
A320962
a(n) = (-1)^(n-1)*(n-1)!*Sum_{i=0..n} Stirling2(n, i) if n > 0 and 0 otherwise.
Terms
- a(0) =0a(1) =1a(2) =-2a(3) =10a(4) =-90a(5) =1248a(6) =-24360a(7) =631440a(8) =-20865600a(9) =852647040a(10) =-42085008000
External references
- oeis: A320962