Number of (n+1)X(n+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 6 and no adjacent elements equal.

A233725

Number of (n+1)X(n+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 6 and no adjacent elements equal.

Terms

    a(0) =40a(1) =756a(2) =29816a(3) =2723072a(4) =578163016a(5) =297173770244

External references