Denominator of probability that a permutation of elements of some subset of set {1,2..n} is a permutation of elements of some set of the form 1..k, k <= n.

A293459

Denominator of probability that a permutation of elements of some subset of set {1,2..n} is a permutation of elements of some set of the form 1..k, k <= n.

Terms

    a(0) =1a(1) =1a(2) =7a(3) =385a(4) =3628921

External references