flickr but haven't the time and energy to manage to be an active blogger. Sorry not to have been visiting your blogs.
My best wishes to you all!
Update: Comments are back on and I'm back!
Enigma 1084: 1-2-3 triangles - From New Scientist #2240, 27th May 2000 The diagram shows a large triangle divided into 100 small triangles. There are 66 points that are corners of the sm...