Number of nX4 0..6 arrays with every nonzero element less than or equal to some NW, E or S neighbor.
A203502
Number of nX4 0..6 arrays with every nonzero element less than or equal to some NW, E or S neighbor.
Terms
- a(0) =1a(1) =29701a(2) =31795165a(3) =17549687172
External references
- oeis: A203502