OFFSET
1,1
COMMENTS
A circle is constructed for every pair of the 1 + 4n points, the two points lying at the ends of a diameter of the circle. The number of distinct circles constructed from the points is A139275(n).
No formula for a(n) is currently known.
LINKS
Scott R. Shannon, Image for n = 1.
Scott R. Shannon, Image for n = 2.
Scott R. Shannon, Image for n = 3.
Scott R. Shannon, Image for n = 4.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Scott R. Shannon, Apr 13 2023
STATUS
approved