Uploaded May 2026 | Updated September 2026, 2 weeks ago
Featuring Neil Sloane, founder of the OEIS... See the extra patterns and variations (including three knights) at youtu.be/VgmDuBCayPw
More links & stuff in full description below ↓↓↓
With thanks also to Jonas Karlsson - jonka364.github.io
Neil Sloane is the founder of the On-Line Encyclopedia of Integer Sequences - oeis.org
More videos with Neil Sloane: youtube.com/playlist?list=PLt5AfwLFPxWJXQqPe_llzWmTHMPb9QvV2
See our Trapped Knight video - youtu.be/RGQe8waGJ4w
More chess-related videos - youtube.com/playlist?list=PLt5AfwLFPxWKX9OPJqBQTdIOAKthKzQ9m
OEIS sequences related to this video:
oeis.org/A308885 (only black knights)
oeis.org/A392177 & oeis.org/A392178 (red & black knights)
oeis.org/A395357 (the final spiral)
Patreon: patreon.com/numberphile
Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: bit.ly/numberphile-janestreet
We are also grateful for support from the Ben Delo Foundation - delo.org
NUMBERPHILE
Website: numberphile.com
Videos by Brady Haran
Numberphile T-Shirts and Merch: teespring.com/stores/numberphile
Brady's videos subreddit: reddit.com/r/BradyHaran
Brady's latest videos across all channels: bradyharanblog.com
Sign up for (occasional) emails: eepurl.com/YdjL9
Featuring Neil Sloane, founder of the OEIS... See the extra patterns and variations (including three knights) at youtu.be/VgmDuBCayPw
More links & stuff in full description below ↓↓↓
With thanks also to Jonas Karlsson - jonka364.github.io
Neil Sloane is the founder of the On-Line Encyclopedia of Integer Sequences - oeis.org
More videos with Neil Sloane: youtube.com/playlist?list=PLt5AfwLFPxWJXQqPe_llzWmTHMPb9QvV2
See our Trapped Knight video - youtu.be/RGQe8waGJ4w
More chess-related videos - youtube.com/playlist?list=PLt5AfwLFPxWKX9OPJqBQTdIOAKthKzQ9m
OEIS sequences related to this video:
oeis.org/A308885 (only black knights)
oeis.org/A392177 & oeis.org/A392178 (red & black knights)
oeis.org/A395357 (the final spiral)
Patreon: patreon.com/numberphile
Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: bit.ly/numberphile-janestreet
We are also grateful for support from the Ben Delo Foundation - delo.org
NUMBERPHILE
Website: numberphile.com
Videos by Brady Haran
Numberphile T-Shirts and Merch: teespring.com/stores/numberphile
Brady's videos subreddit: reddit.com/r/BradyHaran
Brady's latest videos across all channels: bradyharanblog.com
Sign up for (occasional) emails: eepurl.com/YdjL9










