Number of (n+1)X(n+1) binary arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors.
A187720
Number of (n+1)X(n+1) binary arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors.
Terms
- a(0) =16a(1) =174a(2) =3698a(3) =161571a(4) =13555195a(5) =2287444987a(6) =755272970945
External references
- oeis: A187720