Glitch Primes and Cyclops Numbers
Audible: http://www.audible.com/numberphile
Simon Pampena on Glitch Primes and Binary Cyclops Numbers.
Simon on Twitter: https://twitter.com/mathemaniac
Some book recommendations... Love & Math by Edward Frenkel, The Simpsons and their Mathematical Secrets by Simon Singh, The Mathematics of Love by Hannah Fry and Alex's Adventures in Numberland by Alex Bellos.
Prime Playlist: http://bit.ly/primevids