1/5 the number of nX6 0..4 arrays with every element equal to exactly one or two of its horizontal and vertical neighbors.
A185822
1/5 the number of nX6 0..4 arrays with every element equal to exactly one or two of its horizontal and vertical neighbors.
Terms
- a(0) =29a(1) =49248a(2) =35446376a(3) =32995092992
External references
- oeis: A185822