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 A333049 #17 Feb 10 2021 11:23:42 %S A333049 276,6348,36810,137802,356538,760134,1494702,2668458,4254294,6597690, %T A333049 10105662,13949346,20222142,26925654,35032086,47139258,60947286, %U A333049 74831682,96101142,115904808,141052560,172931484,210293622,243217686 %N A333049 The number of edges 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 A333049 See the links in A331908 for images of the hexagrams. %Y A333049 Cf. A331908 (regions), A331909 (n-gons), A333116 (vertices), %Y A333049 A274586, A332600, A331765. %K A333049 nonn,more %O A333049 1,1 %A A333049 _Scott R. Shannon_ and _N. J. A. Sloane_, Mar 08 2020 %E A333049 a(6)-a(24) from _Lars Blomberg_, May 10 2020