a(n) = n! * (n+1)! * (n+2)! * (n+3)! / (2! * 3! * 4!).
A010798
a(n) = n! * (n+1)! * (n+2)! * (n+3)! / (2! * 3! * 4!).
Terms
- a(0) =1a(1) =120a(2) =43200a(3) =36288000a(4) =60963840000
External references
- oeis: A010798
A010798
a(n) = n! * (n+1)! * (n+2)! * (n+3)! / (2! * 3! * 4!).