I love the internet. I posted this question 20 years ago. Got an answer right away. And even more interesting answers today. Thanks! https://groups.google.

I love the internet. I posted this question 20 years ago. Got an answer right away. And even more interesting answers today. Thanks! https://groups.google.com/forum/?hl=en#!searchin/alt.math.recreational/joel.berman/alt.math.recreational/Tc-lFx_K84E/hOrvr82hrS8J https://groups.google.com/forum/?hl=en#!searchin/alt.math.re...