Number of (n+1)X3 0..2 arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors.
A187434
Number of (n+1)X3 0..2 arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors.
Terms
- a(0) =646a(1) =14178a(2) =311730a(3) =6858445a(4) =150878368a(5) =3319295436a(6) =73023484028
External references
- oeis: A187434