a(n) = n!- A088921(n).

Terms

a(0) =0a(1) =0a(2) =0a(3) =1a(4) =11a(5) =87a(6) =640a(7) =4855a(8) =39909a(9) =361995a(10) =3626938a(11) =39912947a(12) =478993719a(13) =6227004807a(14) =87178258916