Original Parker Square video – https://www.youtube.com/watch?v=aOT_bG-vWyg
Parker Square playlist – https://www.youtube.com/playlist?list=PLt5AfwLFPxWKcowaX3-U4lSRUnX5E1eGw
Buy a Parker Square t-shirt – https://numberphile.creator-spring.com/listing/the-parker-square?product=790
Playlist of Matt Parker on Numberphile – https://www.youtube.com/playlist?list=PLt5AfwLFPxWKuRpivZd_ivR2EvEzKrDUu
More Matt Parker stuff (his website) – https://standupmaths.com
Matt’s channel Stand-up Maths – https://www.youtube.com/user/standupmaths
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