Number of permutations with self-conjugate cycle types.
A090694
Number of permutations with self-conjugate cycle types.
Terms
- a(0) =1a(1) =0a(2) =3a(3) =3a(4) =20a(5) =120a(6) =210a(7) =3640a(8) =5264a(9) =211680a(10) =609840a(11) =11517660a(12) =68262480a(13) =1000359360a(14) =14082868800a(15) =89182613520
External references
- oeis: A090694