(2*(n-1))! * (2*n-1)! / (n * (n-1)!^3).
A248045
(2*(n-1))! * (2*n-1)! / (n * (n-1)!^3).
Terms
- a(0) =1a(1) =6a(2) =120a(3) =4200a(4) =211680a(5) =13970880a(6) =1141620480a(7) =111307996800
External references
- oeis: A248045
A248045
(2*(n-1))! * (2*n-1)! / (n * (n-1)!^3).