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.
%I A365669 #8 Oct 05 2023 08:37:00 %S A365669 0,1,2,6,114,42103152 %N A365669 Number of distinct circles created after n iterations of constructing circles from all current vertices using only a compass, starting with one vertex. %C A365669 See A359569 for further details and images. %H A365669 N. J. A. Sloane, New Gilbreath Conjectures, Sum and Erase, Dissecting Polygons, and Other New Sequences, Doron Zeilberger's Exper. Math. Seminar, Rutgers, Sep 14 2023: <a href="https://vimeo.com/866583736?share=copy">Video</a>, <a href="http://neilsloane.com/doc/EMSep2023.pdf">Slides</a>, <a href="http://neilsloane.com/doc/EMSep2023.Updates.txt">Updates</a>. (Mentions this sequence.) %Y A365669 Cf. A359569 (vertices), A359570 (regions), A359571 (edges), A359619 (k-gons), A359931, A360350, A361622. %K A365669 nonn,more,hard %O A365669 1,3 %A A365669 _Scott R. Shannon_, Sep 15 2023