My most recent post about tetrahedral numbers is included in this week’s issue of the Carnival of Mathematics, which can be found here, in Mark Chu-Carroll’s blog, Good Math, Bad Math. (Just so you aren’t misled into thinking this is some sort of honor, it’s included because I submitted it. =) The Carnival of Mathematics is a biweekly compendium of blog posts related to mathematics, with each issue hosted on a different blog. This week’s issue includes posts on a wide range of topics, with a wide range of difficulty levels, so there’s something for everyone. Go check it out!