[math-fun] Cubic Symmetric Graphs

My latest column, on Cubic Symmetric Graphs, is now available at http://maa.org/editorial/mathgames/mathgames_12_29_03.html I particularly like how my picture of the Coxeter Graph turned out. Find cycles of length 7, 8, 9, 10, ... -- and look at the distribution of colors. I find this property amazing. I'd like to hear the reactions of some children shown this graph, and asked to find 7 and 8 cycles. --Ed Pegg Jr, www.mathpuzzle.com