Least number k such that n!/k is prime.

Terms

a(0) =1a(1) =2a(2) =8a(3) =24a(4) =144a(5) =720a(6) =5760a(7) =51840a(8) =518400a(9) =3628800a(10) =43545600a(11) =479001600a(12) =6706022400a(13) =100590336000