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 A067159 #17 Dec 04 2021 12:27:42 %S A067159 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,40,0,0,0,0,0, %T A067159 0,0,0,0,0,51,0,53,0,0,0,0,0,59,0,61,0,63,0,65,0,0,0,0,0,0,0,73,0,225, %U A067159 76,0,0,0,0,0,0,0,0,170,0,0,0,0,0,273,0,93,0,95,0,97,0,0,0,101,102,412 %N A067159 Number of regions in regular n-gon which are 12-gons. %D A067159 B. Poonen and M. Rubinstein, Number of Intersection Points Made by the Diagonals of a Regular Polygon, SIAM J. Discrete Mathematics, Vol. 11, pp. 135-156. %H A067159 Scott R. Shannon, <a href="/A067159/b067159.txt">Table of n, a(n) for n = 12..765</a> %H A067159 Sascha Kurz, <a href="http://www.mathe2.uni-bayreuth.de/sascha/oeis/drawing/drawing.html">m-gons in regular n-gons</a> %H A067159 B. Poonen and M. Rubinstein, <a href="http://math.mit.edu/~poonen/">The number of intersection points made by the diagonals of a regular polygon</a>, SIAM J. on Discrete Mathematics, Vol. 11, No. 1, 135-156 (1998). %H A067159 <a href="/index/Pol#Poonen">Sequences formed by drawing all diagonals in regular polygon</a> %e A067159 a(40)=40 because drawing the regular 40-gon with all its diagonals yields 40 12-gons. %Y A067159 Cf. A007678, A064869, A067151, A067152, A067153, A067154, A067155, A067156, A067157, A067158. %K A067159 nonn %O A067159 12,29 %A A067159 _Sascha Kurz_, Jan 06 2002 %E A067159 a(104) and beyond by _Scott R. Shannon_, Dec 04 2021