Number of nX6 0..3 arrays avoiding the patterns z z+1 z or z z-1 z in any row or column.
A207533
Number of nX6 0..3 arrays avoiding the patterns z z+1 z or z z-1 z in any row or column.
Terms
- a(0) =2902a(1) =8421604a(2) =14111752738
External references
- oeis: A207533