Eureka Sequences

Alex Bellos discusses how the Incans used knots in string (Quipu) to record numbers.Check out Brilliant (get 20% off their premium service): https://brillian...

OEIS founder Neil Sloane with more sequences to ponder - of course!

Check out Brilliant (get 20% off their premium service): https://brilliant.org/numberphile (sponsor)

More Neil Sloane videos: http://bit.ly/Sloane_Numberphile

Visit the OEIS: https://oeis.org/

Today's featured sequences: https://oeis.org/A008864 and https://oeis.org/A001043