Here is yesterday's sequence puzzle now fixed (I hope). PUZZLE: What characterizes the following sequence, of which the first 25 terms are listed? 5, 8, 11, 13, 14, 17, 18, 20, 23, 25, 26, 28, 29, 32, 33, 35, 38, 39, 41, 43, 44, 46, 47, 48, 50, ... Note: This is most naturally just a certain (infinite) subset of the positive integers, which has been arranged in numerical order. --Dan