The number of n-permutations having precisely two cycles whose lengths are relatively prime.

A194364

The number of n-permutations having precisely two cycles whose lengths are relatively prime.

Terms

    a(0) =1a(1) =3a(2) =8a(3) =50a(4) =144a(5) =1764a(6) =8448a(7) =89424a(8) =576000a(9) =10628640a(10) =57231360a(11) =1486442880a(12) =11285084160a(13) =196771680000

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