I am looking for a sequence that changes 2 different variables in 2 different counts. example, i have the text C2A1.1. I need the the 1 after the A to change to a 2 every 12 rows while also changing the second 1 to a 2 every 6 rows and then a 3, 4 on so on all the way up to 12. Is there any formula I can use to achieve this? I've attached an image to kind of show what i am needing. look at column c