Number of (n+1) X (2+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).

A234668

Number of (n+1) X (2+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) =3816a(1) =28860a(2) =217968a(3) =1648188a(4) =12470688a(5) =94430072a(6) =715532392a(7) =5425977036a(8) =41174389648a(9) =312684001244

External references