Featuring Neil Sloane. See https://brilliant.org/numberphile for Brilliant and get 20% off their premium service (episode sponsor)
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Correction at 4:08… Neil says “then we get twice 61" instead of “about twice 61". The actual result is 120, not 122 as labelled.
Neil Sloane is founder of the legendary OEIS: https://oeis.org/
Yellowstone Permutation and its wonderful geysers: https://oeis.org/A098550
More Neil Sloane videos: http://bit.ly/Sloane_Numberphile
Brady in Iceland: https://www.bradyharanblog.com/iceland-index
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