a(n) = n! / (number of distinct prime divisors of n).

A062348

a(n) = n! / (number of distinct prime divisors of n).

Terms

    a(0) =2a(1) =6a(2) =24a(3) =120a(4) =360a(5) =5040a(6) =40320a(7) =362880a(8) =1814400a(9) =39916800a(10) =239500800a(11) =6227020800a(12) =43589145600a(13) =653837184000

External references