I had the pleasure of watching Ellen Borgeld (on the right) & Elizabeth Meena (Hergert Numbers' #1 proponent) deliver a fabulous talk on Arrow Path Sudoku Puzzles this morning at MathFest 2012. You can view their presentation here.
Not surprisingly, my Hergert Numbers t-shirt sparked many conversations with folks who walked up to me with quizzical looks as they tried to figure out just what it meant. So, I retold the story of the origin of the shirts and gave out this web address many times throughout the day. It was a hallmark day for "spreading the word"!
So, if you're new to Hergert Numbers and you want to get involved, all you need to do is send me $11, a shirt size & color preference, and you can become a part of the Hergert Numbers movement. And if you already have more t-shirts than you could ever want, you can still support the cause by adding the term "Hergert Numbers" to your mathematical vocabulary. After all, that's what this is really all about!