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 A008017 #14 Apr 10 2018 08:26:35 %S A008017 1,4,11,21,36,56,82,115,156,195,231,274,332,396,459,519,588,665,742, %T A008017 830,932,1029,1119,1216,1334,1456,1567,1675,1800,1940,2078,2221,2380, %U A008017 2527,2659,2810,2992,3180,3351,3507,3684,3879,4066,4266,4488,4695,4883,5084 %N A008017 Coordination sequence T3 for Zeolite Code AFO. %D A008017 W. M. Meier, D. H. Olson and Ch. Baerlocher, Atlas of Zeolite Structure Types, 4th Ed., Elsevier, 1996 %H A008017 R. W. Grosse-Kunstleve, <a href="/A008017/b008017.txt">Table of n, a(n) for n = 0..1000</a> %H A008017 R. W. Grosse-Kunstleve, <a href="/A005897/a005897.html">Coordination Sequences and Encyclopedia of Integer Sequences</a> %H A008017 R. W. Grosse-Kunstleve, G. O. Brunner and N. J. A. Sloane, <a href="http://neilsloane.com/doc/ac96cs/">Algebraic Description of Coordination Sequences and Exact Topological Densities for Zeolites</a>, Acta Cryst., A52 (1996), pp. 879-889. %H A008017 Sean A. Irvine, <a href="/A008000/a008000_1.pdf">Generating Functions for Coordination Sequences of Zeolites, after Grosse-Kunstleve, Brunner, and Sloane</a> %H A008017 International Zeolite Association, <a href="http://www.iza-structure.org/databases/">Database of Zeolite Structures</a> %K A008017 nonn %O A008017 0,2 %A A008017 _Ralf W. Grosse-Kunstleve_