Number of degree-n permutations with (mutually) relatively prime cycle lengths.

A079128

Number of degree-n permutations with (mutually) relatively prime cycle lengths.

Terms

    a(0) =1a(1) =1a(2) =4a(3) =15a(4) =96a(5) =455a(6) =4320a(7) =29295a(8) =300160a(9) =2663199a(10) =36288000a(11) =348523175a(12) =5748019200a(13) =68027248575

External references