Catch this episode on YouTube - https://youtu.be/DPyWf4cI548\n\nThe Prison Mathematics Project - https://www.prisonmathproject.org/about/\n\nThe Paper: Linear fractional transformations and non-linear leaping convergents of some continued fractions - https://arxiv.org/abs/2002.12644\n\nArticle by Marta Cerruti on The Conversation - https://theconversation.com/an-inmates-love-for-math-leads-to-new-discoveries-130123\n\nYou can support Numberphile on Patreon - https://www.patreon.com/numberphile) like these people - https://www.numberphile.com/patrons\n\nWith thanks to MSRI - https://www.msri.org