Number of permutations of [2n+7] in which the longest increasing run has length n+7.

A230347

Number of permutations of [2n+7] in which the longest increasing run has length n+7.

Terms

    a(0) =1a(1) =16a(2) =287a(3) =5954a(4) =142590a(5) =3900480a(6) =120466080a(7) =4156079760a(8) =158664456720

External references