OEIS founder Neil Sloane with more sequences to ponder - of course! Check out Brilliant (get 20% off their premium service): brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ More Neil Sloane videos: bit.ly/Sloane_Numberphile Visit the OEIS: oeis.org/ Today's featured sequences: oeis.org/A008864 and oeis.org/A001043 Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - www.mathforamerica.org/ NUMBERPHILE Website: www.numberphile.com/ Numberphile on Facebook: www.facebook.com/numberphile Numberphile tweets: twitter.com/numberphile Subscribe: bit.ly/Numberphile_Sub Videos by Brady Haran Animation by Pete McPartlan Patreon: www.patreon.com/numberphile Numberphile T-Shirts and Merch: teespring.com/stores/numberphile Brady's videos subreddit: www.reddit.com/r/BradyHaran/ Brady's latest videos across all channels: www.bradyharanblog.com/ Sign up for (occasional) emails: eepurl.com/YdjL9