Number of (n+1)X9 binary arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors.
A187728
Number of (n+1)X9 binary arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors.
Terms
- a(0) =31672a(1) =758077a(2) =20085335a(3) =603313744a(4) =17862966996a(5) =539993233442
External references
- oeis: A187728