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 7 (constant-stress 1 X 1 tilings).
A234722
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 7 (constant-stress 1 X 1 tilings).
Terms
- a(0) =1096a(1) =3976a(2) =12464a(3) =48976a(4) =168928a(5) =692512a(6) =2531888a(7) =10649920a(8) =40456096a(9) =173104096a(10) =675830384a(11) =2926809856a(12) =11669180128a(13) =50984087392a(14) =206719128368a(15) =909199934080
External references
- oeis: A234722