cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A362235 Number of edges among all distinct circles that can be constructed from a point on the origin and n equally spaced points on each of the +x,-x,+y,-y coordinates axes when each pair of points is connected by a circle and where the points lie at the ends of the circles' diameter.

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%I A362235 #6 Apr 14 2023 07:32:50
%S A362235 48,620,3184,10516,27240,57676,109880,189436,307200,474820,703880
%N A362235 Number of edges among all distinct circles that can be constructed from a point on the origin and n equally spaced points on each of the +x,-x,+y,-y coordinates axes when each pair of points is connected by a circle and where the points lie at the ends of the circles' diameter.
%C A362235 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).
%C A362235 No formula for a(n) is currently known.
%C A362235 See A362233 and A362234 for images of the circles.
%F A362235 a(n) = A362234(n) + A362233(n) - 1 by Euler's formula.
%Y A362235 Cf. A362233 (vertices), A362234 (regions), A362236 (k-gons), A139275 (distinct circles), A356358, A359934.
%K A362235 nonn,more
%O A362235 1,1
%A A362235 _Scott R. Shannon_, Apr 13 2023