a(n) = n! * n^4.

Terms

a(0) =0a(1) =1a(2) =32a(3) =486a(4) =6144a(5) =75000a(6) =933120a(7) =12101040a(8) =165150720a(9) =2380855680a(10) =36288000000a(11) =584421868800