Number of (n+1) X (6+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3 (constant-stress 1 X 1 tilings).
A234225
Number of (n+1) X (6+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3 (constant-stress 1 X 1 tilings).
Terms
- a(0) =137536a(1) =293316a(2) =648536a(3) =1597896a(4) =4055128a(5) =11145960a(6) =31418264a(7) =94267656a(8) =289507096a(9) =935746056a(10) =3091187096a(11) =10648070856a(12) =37386104728a(13) =135693045000a(14) =499984167704
External references
- oeis: A234225