Sorry it's taken me so long to repond! Jon, you are right -- I am treating the codes differently -- a "0" is a "1" in my codes, and vice versa. I can email you the Excel file I have. This lists all the codes. What I've found is that there are really only 64 codes (I believe), even though the system is able to support many more. But, I've not yet analyzed it enough to determine whether there really are only 64 codes.

I'll email you tonight (7/11) with an Excel file. You can see if this matches with your results.