What is the pattern?

[no at none.invalid]

I asked this before but my Usenet reader only saves messages for 30
days.  I still can't get the pattern for this chart.
I started working on the code that should print it, but I never
remembered how to do it.

empire={6:"Infantry",12:"Armor/Fighter",30:"Transport"}
for x in range (6,120,6):
    print(x,x - x / 6)

Anyone want to fill in the blanks to give this chart?
https://imgur.com/a/OR0WKsv