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 A372735 #10 May 12 2024 10:04:33 %S A372735 3,15,34,63,99,148,201,267,340,423,513,616,723,843,970,1107,1251,1408, %T A372735 1569,1743,1924,2115,2313,2524,2739,2967,3202,3447,3699 %N A372735 Number of distinct circles that can be constructed from the 3 vertices and the equally spaced 3*n points placed on the sides of an equilateral triangle when every pair of the 3 + 3*n points are connected by a circle and where the points lie at the ends of the circle's diameter. %C A372735 See A372731 for images of the circles. %Y A372735 Cf. A372731, A372732, A372682, A372614, A372615, A359931, A360350, A361622, A365669. %K A372735 nonn,more %O A372735 1,1 %A A372735 _Scott R. Shannon_, May 11 2024