Number of (n+1) X (2+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

A235101

Number of (n+1) X (2+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

Terms

    a(0) =670a(1) =2498a(2) =9328a(3) =35354a(4) =135254a(5) =523532a(6) =2047890a(7) =8097130a(8) =32339728a(9) =130423938a(10) =530742334a(11) =2177937580a(12) =9005319178a(13) =37492012258a(14) =157045852768a(15) =661404560282

External references