Number of permutations of 7 copies of 1..n with all adjacent differences <= 1 in absolute value.

A177307

Number of permutations of 7 copies of 1..n with all adjacent differences <= 1 in absolute value.

Terms

    a(0) =1a(1) =1a(2) =3432a(3) =623576a(4) =201922730a(5) =48203722464

External references