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

A234155

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

Terms

    a(0) =226a(1) =2210a(2) =21428a(3) =208530a(4) =2031286a(5) =19801468a(6) =193116778a(7) =1883946390a(8) =18382182848a(9) =179381051374

External references