Number of nX6 0..1 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors.
A202977
Number of nX6 0..1 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors.
Terms
- a(0) =1a(1) =31a(2) =866a(3) =17740a(4) =379788a(5) =8071997a(6) =170937904a(7) =3635245483a(8) =77355342983
External references
- oeis: A202977