Number of n X n 0..5 arrays with every nonzero element less than or equal to some NW, E or S neighbor.
A203270
Number of n X n 0..5 arrays with every nonzero element less than or equal to some NW, E or S neighbor.
Terms
- a(0) =1a(1) =36a(2) =107968a(3) =2590250609
External references
- oeis: A203270