Number of (n+1)X(6+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 6.

A233633

Number of (n+1)X(6+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 6.

Terms

    a(0) =1721166a(1) =453376730a(2) =117571581104

External references