Number of (n+1) X (7+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).
A234920
Number of (n+1) X (7+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).
Terms
- a(0) =39720a(1) =169128a(2) =710304a(3) =4151672a(4) =22970144a(5) =150606424a(6) =911837036a(7) =6251426440a(8) =39266933948a(9) =276635826688
External references
- oeis: A234920