J_n(9) (see A059379).

Terms

a(0) =0a(1) =6a(2) =72a(3) =702a(4) =6480a(5) =58806a(6) =530712a(7) =4780782a(8) =43040160a(9) =387400806a(10) =3486725352a(11) =31380882462a(12) =282429005040