Number of nX6 0..4 arrays with every nonzero element less than or equal to some NW, E or S neighbor.
A203548
Number of nX6 0..4 arrays with every nonzero element less than or equal to some NW, E or S neighbor.
Terms
- a(0) =1a(1) =504464a(2) =3251156731
External references
- oeis: A203548