Number of (n+1)X(6+1) 0..3 arrays with every 2X2 subblock having the absolute values of all six edge and diagonal differences no larger than 1.

A234159

Number of (n+1)X(6+1) 0..3 arrays with every 2X2 subblock having the absolute values of all six edge and diagonal differences no larger than 1.

Terms

    a(0) =131896a(1) =19801468a(2) =2976757624a(3) =454899880956

External references