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 A359934 Number of edges among all distinct circles that can be constructed from an n x n square grid of points using only a compass. 7
 84, 1524, 15436, 81980, 318740, 1024312 (list; graph; refs; listen; history; text; internal format)
 OFFSET 2,1 COMMENTS A circle is constructed for every pair of the n x n points, the first point defines the circle's center while the second the radius distance. The number of distinct circles constructed from the n x n points is A359931(n). No formula for a(n) is known. See A359932 and A359933 for images of the circles. LINKS Table of n, a(n) for n=2..7. FORMULA a(n) = A359932(n) + A359933(n) - 1 by Euler's formula. CROSSREFS Cf. A359932 (vertices), A359933 (regions), A359935 (k-gons), A359931 (distinct circles), A359861, A359254. Sequence in context: A105942 A219476 A008359 * A166847 A219938 A271670 Adjacent sequences: A359931 A359932 A359933 * A359935 A359936 A359937 KEYWORD nonn,more AUTHOR Scott R. Shannon, Jan 21 2023 STATUS approved

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Last modified July 14 20:49 EDT 2024. Contains 374323 sequences. (Running on oeis4.)