Number of permutations of 9 copies of 1..n with all adjacent differences <= 1 in absolute value.

A177313

Number of permutations of 9 copies of 1..n with all adjacent differences <= 1 in absolute value.

Terms

    a(0) =1a(1) =1a(2) =48620a(3) =60110030a(4) =161686253810

External references