Number of permutations of 6 copies of 1..n with all adjacent differences <= 2 in absolute value.

A177305

Number of permutations of 6 copies of 1..n with all adjacent differences <= 2 in absolute value.

Terms

    a(0) =1a(1) =1a(2) =924a(3) =17153136a(4) =47768769048

External references