a(n) = Sum_{k=0..n} binomial(n,k) * binomial((n-1)*(k+1),n-k).
A382859
a(n) = Sum_{k=0..n} binomial(n,k) * binomial((n-1)*(k+1),n-k).
Terms
- a(0) =1a(1) =1a(2) =5a(3) =37a(4) =345a(5) =3851a(6) =49468a(7) =713931a(8) =11391985a(9) =198523495a(10) =3741919446a(11) =75702725440
External references
- oeis: A382859