Number of (n+1)X9 0..2 arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors.
A187440
Number of (n+1)X9 0..2 arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors.
Terms
- a(0) =206705746
External references
- oeis: A187440