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

A177318

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

Terms

    a(0) =1a(1) =2a(2) =86a(3) =10010a(4) =1543862a(5) =276285002a(6) =54331653686

External references