Number of integers up to n! relatively prime to n!.
A048855
Number of integers up to n! relatively prime to n!.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =8a(5) =32a(6) =192a(7) =1152a(8) =9216a(9) =82944a(10) =829440a(11) =8294400a(12) =99532800a(13) =1194393600a(14) =16721510400a(15) =250822656000
External references
- oeis: A048855