Number of nX3 0..4 arrays with every nonzero element less than or equal to some NW, E or S neighbor.
A203545
Number of nX3 0..4 arrays with every nonzero element less than or equal to some NW, E or S neighbor.
Terms
- a(0) =1a(1) =430a(2) =32920a(3) =1525965a(4) =67657718a(5) =3251156731a(6) =158110806032
External references
- oeis: A203545