Number of (n+1) X (n+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3 (constant-stress 1 X 1 tilings).

A234219

Number of (n+1) X (n+1) 0..4 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) =104a(1) =1560a(2) =17448a(3) =167688a(4) =1379816a(5) =11145960a(6) =83324136a(7) =639913896a(8) =4699132904

External references