Number of nX6 0..7 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors.
A203441
Number of nX6 0..7 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors.
Terms
- a(0) =1a(1) =21988a(2) =168492336a(3) =482229769194
External references
- oeis: A203441