an aesthetic double sum

We find the value of a nice double sum. Please Subscribe: Merch: Personal Website: Randolph College Math: Randolph College Math and Science on Facebook: Research Gate profile: Google Scholar profile: If you are going to use an ad-blocker, considering using brave and tipping me BAT! Buy textbooks here and help me out: Buy an amazon gift card and help me out: Books I like: Sacred Mathematics: Japanese Temple Geometry: Electricity and Magnetism for Mathematicians: Abstract Algebra: Judson(online): Judson(print): Dummit and Foote: Gallian: Artin: Differential Forms: Bachman: Number Theory: Crisman(online): Strayer: Andrews: Analysis: Abbot: How to think about Analysis: Calculus: OpenStax(online): OpenStax Vol 1: OpenStax Vol 2: OpenStax Vol 3: My Filming Equipment: Camera: Lense: Audio Recorder: Microphones: Lights: White Chalk: Color Chalk: