a(n+1) = a(n)/n! if n! divides a(n) else a(n)*n!.

A008338

a(n+1) = a(n)/n! if n! divides a(n) else a(n)*n!.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =12a(4) =288a(5) =34560a(6) =48a(7) =241920a(8) =6a(9) =2177280a(12) =658409472000a(14) =47029248000a(16) =2939328000a(18) =163296000

External references