Ansewer : They are all factors of the number [ 24 ] .
But we are missing a [ 12 ] , which is also a factor of [ 24 ] .
We then looked , alternately , at the [ 12 sides ] of the Cube , which is symmetric :

The symmetry then shows a [ 1-4-2-4-1 ] pattern , as marked in the diagram on-the-right , above ,