a(0) = 1; a(n) = (1/n) * Sum_{k=1..n} binomial(n,k)^2 * k * 2^(k-1) * a(n-k).
A337592
a(0) = 1; a(n) = (1/n) * Sum_{k=1..n} binomial(n,k)^2 * k * 2^(k-1) * a(n-k).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =28a(4) =312a(5) =4936a(6) =104128a(7) =2806336a(8) =93560064a(9) =3765265408a(10) =179415074304
External references
- oeis: A337592