a(0) = 1 and a(n) = (1/n) * Sum_{k=1..n} binomial(n,k) * binomial(n+(n-1)*k,k-1) for n > 0.
A335871
a(0) = 1 and a(n) = (1/n) * Sum_{k=1..n} binomial(n,k) * binomial(n+(n-1)*k,k-1) for n > 0.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =20a(4) =234a(5) =4159a(6) =101538a(7) =3182454a(8) =122285201a(9) =5575750271a(10) =294529785168
External references
- oeis: A335871