Half the number of nX4 0..3 arrays with no element equal to the average of its horizontal and vertical neighbors.
A197105
Half the number of nX4 0..3 arrays with no element equal to the average of its horizontal and vertical neighbors.
Terms
- a(0) =61a(1) =13526a(2) =2548972a(3) =478107878a(4) =89735942231
External references
- oeis: A197105