The Square-Sum Problem (extra footage) - Numberphile

Make sure you first see the main video at: https://youtu.be/G1m7goLCJDY More links in full description below... Please look ↓↓↓ Featuring Matt Parker and Charlie Turner Things to Make and Do in the Fourth Dimension by Matt Parker: http://amzn.to/2mksdD5 More Matt Parker on Numberphile: http://bit.ly/Matt_Videos Matt's own website and other stuff: http://standupmaths.com Charlie used Sage... SageMath, the Sage Mathematics Software System (Version 8.0), The Sage Developers, 2017, http://www.sagemath.org More on her code at: https://github.com/charlieturner/square-sum-sequences NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile Videos by Brady Haran Support us on Patreon: http://www.patreon.com/numberphile Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/ A run-down of Brady's channels: http://www.bradyharan.com Sign up for (occasional) emails: http://eepurl.com/YdjL9 Thank you to these Patrons: Jeremy Buchanan Arjun Chakroborty Jeff Straathof Susan Silver Yana Chernobilsky Christian Cooper James Bissonette Ken Baron Bill Shillito Tony Fadell Ryan Mehendale Turner Lehmbecker Bernd Sing Dr Jubal John Thomas Buckingham Ole Kristian Merli Tianyu Ge BITISM CO Joshua Davis Steve Crutchfield Jon Padden Kristo Käärmann Vali Dobrota D Hills Eric Mumford Charles Southerland Arnas Ian George Walker Paul Bates Tracy Parry George Greene Igor Sokolov Alfred Wallace