Number of nX7 0..4 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors.
A203345
Number of nX7 0..4 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors.
Terms
- a(0) =1a(1) =12487a(2) =48091042a(3) =72606563663
External references
- oeis: A203345