OFFSET
1,1
COMMENTS
A circle is constructed for every pair of the 1 + 4n points, the first point defines the circle's center while the second the radius distance. The number of distinct circles constructed from the points is A361622(n).
No formula for a(n) is known.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Scott R. Shannon, Mar 13 2023
STATUS
approved