My apologies if this type of question is inappropriate here, especially since it's the other end of the spectrum from your normal discussions, but I could find no other group where someone might be helpful.
Has there ever been a system in BaseX where X is also a digit? (i.e. a Base3 where counting is: 1, 2, 3, 11, 12, 13, 21 . . .)
Is there a term for such a system?
I'm playing around with a science-fictional arithmetic, and I want to explore any established concepts which intersect with what I'm doing.
Thanks in advance (and, once again, apologies if this is inappropriate here).