a(n) = Sum_{k=0..n} Stirling1(n,k) * k! * (-n)^(n-k).
A352074
a(n) = Sum_{k=0..n} Stirling1(n,k) * k! * (-n)^(n-k).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =42a(4) =904a(5) =34070a(6) =2019888a(7) =174588120a(8) =20804747136
External references
- oeis: A352074