Number of cyclic permutations of [n] with symmetry order s=1.

A325956

Number of cyclic permutations of [n] with symmetry order s=1.

Terms

    a(0) =1a(1) =0a(2) =0a(3) =4a(4) =20a(5) =108a(6) =714a(7) =4992a(8) =40284a(9) =362480a(10) =3628790a(11) =39912648a(12) =479001588a(13) =6226974684a(14) =87178287120

External references