

A359046


Number of distinct regions among all circles that can be constructed on vertices of an nsided regular polygon, using only a compass.


9



1, 3, 7, 45, 66, 186, 267, 657, 721, 1501, 1893, 2772, 3654, 5727, 6511, 9969, 11340, 14850, 18051, 23921, 26755, 35201, 39975, 47280, 55776, 69863, 75385, 93017, 102864, 117810, 134541, 161217, 172921, 205293, 221271, 252828, 277242, 322811, 341017, 393721, 420702, 466074, 509379
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OFFSET

1,2


COMMENTS

No formula for a(n) is currently known.


LINKS

Scott R. Shannon, Image for n = 2. In this and other images the points defining the nsided regular polygon are show as white dots.


FORMULA



CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



