[math-fun] Your favorite elliptic curve?

My Favorite Elliptic Curve: A Tale of Two Types of Triangles Author(s): Richard K. Guy Source: The American Mathematical Monthly, Vol. 102, No. 9 (Nov., 1995), pp. 771-781 Sometimes it’s fun to appreciate the special rather than the general, and that is well conveyed in the aforementioned article. Does anyone else have a favorite elliptic curve they want to mention? —Brad