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

A235233

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

Terms

    a(0) =420a(1) =1288a(2) =3688a(3) =11728a(4) =34916a(5) =113940a(6) =348876a(7) =1158552a(8) =3626376a(9) =12193672a(10) =38853396a(11) =131871756a(12) =426383532a(13) =1457769280a(14) =4770857720a(15) =16406943392a(16) =54238894212a(17) =187427003188a(18) =624847358508

External references