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 A333116 #11 May 10 2020 14:58:34 %S A333116 109,2761,16387,63943,167071,357919,711895,1283419,2040187,3173851, %T A333116 4909351,6730795,9868711,13101883,16984963,23055523,29896135,36496711, %U A333116 47223703,56703265,68999605,84927301,103692535,119208667 %N A333116 The number of vertices inside a hexagram formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts. %C A333116 See the links in A331908 for images of the hexagrams. %H A333116 <a href="/index/St#Stained">Index entries for sequences related to stained glass windows</a> %Y A333116 Cf. A331908 (regions), A331909 (n-gons), A333049 (edges), A092866, A332599, A007569. %K A333116 nonn,more %O A333116 1,1 %A A333116 _Scott R. Shannon_ and _N. J. A. Sloane_, Mar 08 2020 %E A333116 a(6)-a(24) from _Lars Blomberg_, May 10 2020