Number of permutations in the symmetric group S_n in which cycle lengths are odd and greater than 1.

A130915

Number of permutations in the symmetric group S_n in which cycle lengths are odd and greater than 1.

Terms

    a(0) =1a(1) =0a(2) =0a(3) =2a(4) =0a(5) =24a(6) =40a(7) =720a(8) =2688a(9) =42560a(10) =245376a(11) =4072320a(12) =31672960a(13) =569935872a(14) =5576263680a(15) =109492807424

External references