Number of (n+1)X(7+1) arrays of permutations of 0..n*8+7 with each element having index change +-(.,.) 0,0 1,2 or 2,-2.

A264058

Number of (n+1)X(7+1) arrays of permutations of 0..n*8+7 with each element having index change +-(.,.) 0,0 1,2 or 2,-2.

Terms

    a(0) =64a(1) =15625a(2) =2073600a(3) =239878144a(4) =28543426704

External references