a(1) = 2; for n > 1, a(n) = (n-2)! * n^3.
A276940
a(1) = 2; for n > 1, a(n) = (n-2)! * n^3.
Terms
- a(0) =2a(1) =8a(2) =27a(3) =128a(4) =750a(5) =5184a(6) =41160a(7) =368640a(8) =3674160a(9) =40320000a(10) =482993280a(11) =6270566400a(12) =87697209600
External references
- oeis: A276940