Number of nX6 0..2 arrays with every 1 immediately preceded by 0 to the left or above, and every 2 immediately preceded by both a 1 and a 0.
A203369
Number of nX6 0..2 arrays with every 1 immediately preceded by 0 to the left or above, and every 2 immediately preceded by both a 1 and a 0.
Terms
- a(0) =13a(1) =1399a(2) =85932a(3) =6026844a(4) =406389748a(5) =27758308569
External references
- oeis: A203369