Number of permutations on n letters that have only cycles of length 6 or less.
A070947
Number of permutations on n letters that have only cycles of length 6 or less.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =24a(5) =120a(6) =720a(7) =4320a(8) =29520a(9) =225360a(10) =1890720a(11) =17169120a(12) =166112640a(13) =1680462720a(14) =18189031680a(15) =209008512000
External references
- oeis: A070947