Number of permutations of 1..2*n+6 with no adjacent elements within n in value.

A179964

Number of permutations of 1..2*n+6 with no adjacent elements within n in value.

Terms

    a(0) =720a(1) =5242a(2) =44304a(3) =399848a(4) =3661824a(5) =33461568a(6) =305193408a(7) =2779045440

External references