Number of nX7 0..4 arrays with every nonzero element less than or equal to some NW, E or S neighbor.
A203549
Number of nX7 0..4 arrays with every nonzero element less than or equal to some NW, E or S neighbor.
Terms
- a(0) =1a(1) =5448482a(2) =158110806032
External references
- oeis: A203549