Math Poetry (2015)

Beat me to it! I have no memory of where I first heard it, but it was in my far-away long-lost youth. Despite that, I have never forgotten it, nor lost the ability to call it up instantly from my memory (unlike, for example, my wife's birthday.) it was apparently written by someone named Leigh Mercer (https://en.wikipedia.org/wiki/Leigh_Mercer).

(Just kidding, honey!)