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 4 (constant-stress 1 X 1 tilings).

A234669

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 4 (constant-stress 1 X 1 tilings).

Terms

    a(0) =29568a(1) =217968a(2) =1604020a(3) =11826092a(4) =87273500a(5) =644848264a(6) =4769561472a(7) =35319420856a(8) =261811840168

External references