Number of nX2 0..5 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor.
A203051
Number of nX2 0..5 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor.
Terms
- a(0) =6a(1) =286a(2) =7820a(3) =177290a(4) =4078368a(5) =96511488a(6) =2282090278a(7) =53729637298
External references
- oeis: A203051