Number of (n+1)X(6+1) arrays of permutations of 0..n*7+6 with each element having index change +-(.,.) 0,0 0,1 or 2,-2.

A264088

Number of (n+1)X(6+1) arrays of permutations of 0..n*7+6 with each element having index change +-(.,.) 0,0 0,1 or 2,-2.

Terms

    a(0) =441a(1) =52941a(2) =6355441a(3) =563080476a(4) =49887902736

External references