Number of nX5 0..4 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors.
A203343
Number of nX5 0..4 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors.
Terms
- a(0) =1a(1) =425a(2) =142167a(3) =23912553a(4) =3742207236a(5) =643689050030
External references
- oeis: A203343