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Old 2021-01-27, 08:08   #4
MattcAnderson
 
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"Matthew Anderson"
Dec 2010
Oregon, USA

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Another interesting sequence is
OEIS.org/A250001
It is about “How many ways can circles overlap?”
Everyone is different.
Also see a Numberphile video in YouTube
Called “How many ways can circles overlap?”

The sequence has
1, 3, 14, 173 in the beginning

Cheers
Matt
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