1/6 the number of nX6 0..5 arrays with every element equal to exactly one or two of its horizontal and vertical neighbors.
A185539
1/6 the number of nX6 0..5 arrays with every element equal to exactly one or two of its horizontal and vertical neighbors.
Terms
- a(0) =41a(1) =127190a(2) =167398110a(3) =295044602325
External references
- oeis: A185539