Product of consecutive factorials.

Terms

a(0) =1a(1) =2a(2) =6a(3) =12a(4) =24a(5) =120a(6) =144a(7) =288a(8) =720a(9) =2880a(10) =5040a(11) =17280a(12) =34560a(13) =40320a(14) =86400a(15) =362880a(16) =2073600a(17) =3628800a(18) =12441600a(19) =24883200a(20) =39916800a(21) =203212800a(22) =435456000a(23) =479001600a(24) =6227020800a(25) =10450944000a(26) =14631321600a(27) =62705664000a(28) =87178291200