Number of permutations in the symmetric group S_n with order >= 3.

A066052

Number of permutations in the symmetric group S_n with order >= 3.

Terms

    a(0) =0a(1) =0a(2) =2a(3) =14a(4) =94a(5) =644a(6) =4808a(7) =39556a(8) =360260a(9) =3619304a(10) =39881104a(11) =478861448a(12) =6226452296a(13) =87175900720

External references