Hi Akintunde, thank you for your response.
The next 'triple-digits' start at 111, 112, 113... and ends in 1Δ8 1Δ9, 1ΔΔ to 211, 212, 213...
This goes on repeatedly until you reach the tens of thousands, hundreds of thousands, millions, etc. basically for infinity.
I have actually built tables for this into the tens of thousands. When you look at this direct-decimal system on a large scale, it is very nice, has a good flow, and is easy to understand.