Number of permutations p of [2n] with no fixed points where the maximal displacement of an element equals n.

A259785

Number of permutations p of [2n] with no fixed points where the maximal displacement of an element equals n.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =44a(4) =1285a(5) =59963a(6) =4113244a(7) =389384029a(8) =48627012403

External references