Number of permutations of 2n-1 objects with exactly n cycles.

A129505

Number of permutations of 2n-1 objects with exactly n cycles.

Terms

    a(0) =1a(1) =3a(2) =35a(3) =735a(4) =22449a(5) =902055a(6) =44990231a(7) =2681453775a(8) =185953177553

External references