Greetings! It seems that 5pm-6pm on Wednesdays is the best weekly slot for everyone, so that's when we'll meet in the weeks ahead, including this week. Check out http://www.lafayette.edu/faculty/smithder/pg/ for more info, links to web sites, yada yada. 'Til then, Derek (smithder) and Ethan (berkovee) ----- A free question, because we care ----- Can you make seven triples of numbers using the seven numbers {1, 2, ..., 7} in such a way that each pair of numbers is in exactly one triple? For instance, 123 345 567 157 xxx xxx xxx isn't the best way to begin, because 5 and 7 are in two of the triples together already.