a(n) = (-1)^n * Sum_{k=0..n} Stirling1(n,k) * Stirling1(n,n-k).
A342111
a(n) = (-1)^n * Sum_{k=0..n} Stirling1(n,k) * Stirling1(n,n-k).
Terms
- a(0) =1a(1) =0a(2) =1a(3) =12a(4) =193a(5) =3980a(6) =100805a(7) =3034920a(8) =105994833a(9) =4215106728a(10) =188097696345
External references
- oeis: A342111