Number of permutations on [n] that are the n-th power of a permutation.
A247009
Number of permutations on [n] that are the n-th power of a permutation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =4a(4) =9a(5) =96a(6) =190a(7) =4320a(8) =11025a(9) =179200a(10) =805896a(11) =36288000a(12) =63155400a(13) =5748019200a(14) =18861448320a(15) =380872267776
External references
- oeis: A247009