a(0) = 1; a(n) = n * Sum_{k=0..n-1} binomial(n-1,k)^2 * a(k).
A336227
a(0) = 1; a(n) = n * Sum_{k=0..n-1} binomial(n-1,k)^2 * a(k).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =27a(4) =292a(5) =4425a(6) =89106a(7) =2280901a(8) =71928872a(9) =2728450017a(10) =122145511510
External references
- oeis: A336227