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 A302841 #14 May 09 2018 13:45:35 %S A302841 1,5,15,10,15,35,20,40,40,40,40,50,70,55,85,60,70,70,115,75,90,120,90, %T A302841 110,130,110,110,120,160,130,120,190,130,155,185,160,145,225,150,190, %U A302841 210,190,170,200,240,210,180,295,185,240,265,235,210,245,295,260,310 %N A302841 Coordination sequence for a node with 5-fold symmetry in a Penrose rhomb tiling beginning with a central 'Star' configuration. %C A302841 See A302176 and A302842 for similar sequences. %H A302841 Rémy Sigrist, <a href="/A302841/b302841.txt">Table of n, a(n) for n = 0..2584</a> %H A302841 Preshing on Programming, <a href="https://preshing.com/20110831/penrose-tiling-explained/">Penrose Tiling Explained</a> %H A302841 Rémy Sigrist, <a href="/A302841/a302841.png">Illustration of first terms</a> %H A302841 Rémy Sigrist, <a href="/A302841/a302841.txt">C++ program for A302841</a> %H A302841 Wikipedia, <a href="http://en.wikipedia.org/wiki/Penrose_tiling">Penrose tiling</a> %H A302841 <a href="/index/Con#coordination_sequences">Index entries for coordination sequences of aperiodic tilings</a> %o A302841 (C++) See Links section. %Y A302841 Cf. A302176, A302842, A302868 (partial sums). %K A302841 nonn %O A302841 0,2 %A A302841 _Rémy Sigrist_, Apr 14 2018