Number of (n+1) X (n+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).
A234720
Number of (n+1) X (n+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) =240a(1) =3976a(2) =33560a(3) =357208a(4) =2557656a(5) =23137720a(6) =157274648a(7) =1310504248a(8) =8760624600
External references
- oeis: A234720