Number of nX6 0..2 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors.
A203458
Number of nX6 0..2 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors.
Terms
- a(0) =1a(1) =209a(2) =29677a(3) =2527020a(4) =231588325a(5) =22078482448
External references
- oeis: A203458