Number of nX2 0..6 arrays with every nonzero element less than or equal to some NW, E or S neighbor.
A203500
Number of nX2 0..6 arrays with every nonzero element less than or equal to some NW, E or S neighbor.
Terms
- a(0) =1a(1) =49a(2) =1554a(3) =29701a(4) =481122a(5) =7959529a(6) =138035591a(7) =2413093119a(8) =41816203653a(9) =721412975758
External references
- oeis: A203500