365, Banding, Formula One, Geocaching
Day 209: Maths Dancing & A Published Puzzle
I saw that and loved it. I will admit that I had to look this up to check it was today’s number (I would have been annoyed had this been another day and I missed it…), but during one geeky session with a calculator, I tend to remember that 209=16+25+34+43+52+61. Which is kinda funky. Some other […]