Cutting Moons

Neil Sloane is back, this time with some mathematical properties of Lunes.

See more Neil Sloane videos on Numberphile: https://www.youtube.com/playlist?list=PLt5AfwLFPxWJXQqPe_llzWmTHMPb9QvV2

Neil is the founder of the On-Line Encyclopedia of Integer Sequences (OEIS): https://oeis.org/

Some OEIS sequences related to this video (to get you started)...
https://oeis.org/A000217
https://oeis.org/A000124

Brady Haran videos relating to the Moon - https://www.youtube.com/playlist?list=PLXDUU63xAVsc