a(n) = A078456(n)/A120271(n).

Terms

a(0) =1a(1) =1a(2) =2a(3) =4a(4) =8a(5) =576a(6) =1152a(7) =2304a(8) =4608a(9) =18432a(10) =552960a(11) =59719680a(12) =2388787200a(13) =100329062400a(14) =200658124800a(15) =802632499200