Number of nX3 0..6 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors.
A203384
Number of nX3 0..6 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors.
Terms
- a(0) =1a(1) =49a(2) =2422a(3) =65653a(4) =1644254a(5) =50848495a(6) =1678700434a(7) =53072796241
External references
- oeis: A203384