I probably had a weird introduction to Pythagorean triples in my childhood -- through my Meccano kit. 3,4,5 was of course the most common one. Other bases that

I probably had a weird introduction to Pythagorean triples in my childhood -- through my Meccano kit. 3,4,5 was of course the most common one. Other bases that worked were 6,8,9 and 12. The 12 was the more interesting one. You brace a right angle with 3,4,5 and then examine which other holes align. I would be happy to know if others had a similar experience. I date myself though. This kit was Russian made and had just excellent finish, tiny chrome plated nuts and bolts.I haven't thought about it in a while. Now I need to look for it at my parent's house.