a(n) = 1/n! * ((n+1)*n)!/Gamma(1 + (n+1)*n/2) * Gamma(1 + (n-1)*n/2)/((n-1)*n)!.
A332231
a(n) = 1/n! * ((n+1)*n)!/Gamma(1 + (n+1)*n/2) * Gamma(1 + (n-1)*n/2)/((n-1)*n)!.
Terms
- a(0) =1a(1) =2a(2) =30a(3) =924a(4) =41990a(5) =2521260a(6) =188296108a(7) =16825310040
External references
- oeis: A332231