a(0) = 1 and a(n) = (1/n) * Sum_{k=1..n} (-1)^(n-k) * binomial(n,k) * binomial(n+(n-1)*k,k-1) for n > 0.
A336713
a(0) = 1 and a(n) = (1/n) * Sum_{k=1..n} (-1)^(n-k) * binomial(n,k) * binomial(n+(n-1)*k,k-1) for n > 0.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =6a(4) =76a(5) =1447a(6) =37206a(7) =1212194a(8) =47975271a(9) =2238595055a(10) =120453255172
External references
- oeis: A336713