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 A372981 #5 May 19 2024 08:53:32 %S A372981 8,32,88,160,264,400,576,732,968,1184,1480,1728,2104,2424,2840,3196, %T A372981 3688,4088,4640,5048,5704,6248,6904,7364 %N A372981 Number of distinct circles that can be constructed from the 4 vertices and the equally spaced 4*n points placed on the sides of a square, using only a compass. %C A372981 A circle is constructed for every pair of the 4 + 4*n points, the first point defines the circle's center while the second the radius distance. %C A372981 See A372978 for images of the circles. %Y A372981 Cf. A372978, A372977, A372979, A359931, A372682, A361622, A365669. %K A372981 nonn,more %O A372981 0,1 %A A372981 _Scott R. Shannon_, May 19 2024