Number of nX4 0..5 arrays with every nonzero element less than or equal to some NW, E or S neighbor.
A203273
Number of nX4 0..5 arrays with every nonzero element less than or equal to some NW, E or S neighbor.
Terms
- a(0) =1a(1) =12783a(2) =7849844a(3) =2590250609a(4) =805342647391
External references
- oeis: A203273