Number of nX3 0..2 arrays avoiding the pattern z+1 z+1 z horizontally and z-1 z-1 z vertically.
A207353
Number of nX3 0..2 arrays avoiding the pattern z+1 z+1 z horizontally and z-1 z-1 z vertically.
Terms
- a(0) =25a(1) =625a(2) =12468a(3) =244134a(4) =4752484a(5) =92438519a(6) =1799496100a(7) =35036066712a(8) =682243342430
External references
- oeis: A207353