Number of (n+1) X (3+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3 (constant-stress 1 X 1 tilings).

A234230

Number of (n+1) X (3+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3 (constant-stress 1 X 1 tilings).

Terms

    a(0) =48592a(1) =635904a(2) =8260920a(3) =108591688a(4) =1418241440a(5) =18729039912a(6) =245685138024

External references