a(n) = n! * Sum_{k=0..n} binomial(n+(n-1)*k,n*k)/k!.
A361607
a(n) = n! * Sum_{k=0..n} binomial(n+(n-1)*k,n*k)/k!.
Terms
- a(0) =1a(1) =2a(2) =9a(3) =88a(4) =1457a(5) =35226a(6) =1158097a(7) =49554464a(8) =2664907233a(9) =175012404562
External references
- oeis: A361607