Description : How many triangles will there be after n number of sequences?
Last Answer : I drew two more iterations of the pattern and added 9, then 12 more triangles. Your first two drawings showed 3 then 6. So the first 4 iterations go 3, 6, 9, 12 if that continues, it seems the pattern ... , 19, 31 and you'll have to give me a moment to come up with the formula for that sequence.