a(0) = 1; a(n) = (1/n) * Sum_{k=0..floor((n-1)/2)} binomial(n,2*k+1)^3 * (2*k+1) * a(n-2*k-1).
A352469
a(0) = 1; a(n) = (1/n) * Sum_{k=0..floor((n-1)/2)} binomial(n,2*k+1)^3 * (2*k+1) * a(n-2*k-1).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =37a(4) =640a(5) =18401a(6) =810616a(7) =51506645a(8) =4512303104a(9) =526359723265
External references
- oeis: A352469