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 defines the radius. The number of distinct circles constructed from the n X n points is A359931(n).
No formula for a(n) is known.
LINKS
Scott R. Shannon, Image for n = 2. In this and other images the n X n grid points are shown as white dots.
Scott R. Shannon, Image for n = 3.
Scott R. Shannon, Image for n = 4.
Scott R. Shannon, Image for n = 5.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Scott R. Shannon, Jan 21 2023
STATUS
approved