Grid results filter - Regular Expression

I am trying to use a regular expression in the grid results quick filter and cannot seem to get it to working, for filtering a specific digit. Please review the attached images for example. As you will see in this example, I'm just trying to include it if the column has a digit. What I want to do after determining the right syntax is only include if column is 0 or 1 by using a number range[0-9]. TIA