The number of permutations of {1,2,...,2n} that contain a cycle of length greater than n.

A201546

The number of permutations of {1,2,...,2n} that contain a cycle of length greater than n.

Terms

    a(0) =1a(1) =14a(2) =444a(3) =25584a(4) =2342880a(5) =312888960a(6) =57424792320

External references