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 6, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

A235243

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 6, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

Terms

    a(0) =3746a(1) =10866a(2) =31858a(3) =108374a(4) =359962a(5) =1305758a(6) =4596034a(7) =17276982a(8) =63001946a(9) =243085134a(10) =909934434a(11) =3586769950a(12) =13711602746a(13) =55035076230a(14) =214054835346a(15) =872409743726

External references