Number of nX7 0..2 arrays avoiding the pattern z+1 z+1 z horizontally and z-1 z-1 z vertically.
A207357
Number of nX7 0..2 arrays avoiding the pattern z+1 z+1 z horizontally and z-1 z-1 z vertically.
Terms
- a(0) =1440a(1) =2073600a(2) =1799496100
External references
- oeis: A207357