Number of entries in the n-th cycles of all permutations of [2n].

A285239

Number of entries in the n-th cycles of all permutations of [2n].

Terms

    a(0) =3a(1) =27a(2) =463a(3) =12217a(4) =441383a(5) =20338679a(6) =1141073295a(7) =75473055841

External references