Number of (n+1)X7 binary arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors.
A187726
Number of (n+1)X7 binary arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors.
Terms
- a(0) =3520a(1) =46003a(2) =641743a(3) =9823368a(4) =148669520a(5) =2287444987a(6) =35118814718a(7) =539993233442
External references
- oeis: A187726