Number of (n+1)X(3+1) 0..2 arrays with every 2X2 subblock sum differing from its neighbors horizontally, vertically and nw-se diagonally.

A253161

Number of (n+1)X(3+1) 0..2 arrays with every 2X2 subblock sum differing from its neighbors horizontally, vertically and nw-se diagonally.

Terms

    a(0) =3844a(1) =46752a(2) =555842a(3) =7252320a(4) =92998506a(5) =1190692584a(6) =15179218714a(7) =194198939906

External references