Number of different numbers that are formed by permuting digits of n!.
A309415
Number of different numbers that are formed by permuting digits of n!.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =6a(6) =6a(7) =12a(8) =60a(9) =360a(10) =1260a(11) =10080a(12) =15120a(13) =25200a(14) =1247400a(15) =32432400a(16) =12612600a(17) =6810804000a(18) =7264857600a(19) =185253868800
External references
- oeis: A309415