Moebius transform of n!.

Terms

a(0) =1a(1) =1a(2) =5a(3) =22a(4) =119a(5) =713a(6) =5039a(7) =40296a(8) =362874a(9) =3628679a(10) =39916799a(11) =479000858a(12) =6227020799a(13) =87178286159