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 A008015 #14 Apr 10 2018 08:26:35 %S A008015 1,4,11,22,38,58,85,115,149,190,235,280,333,391,453,522,595,668,749, %T A008015 834,922,1020,1123,1223,1332,1446,1561,1685,1814,1941,2079,2221,2363, %U A008015 2517,2675,2828,2993,3163,3333,3515,3701,3882,4075,4271,4466,4677,4893,5101 %N A008015 Coordination sequence T1 for Zeolite Code AFO. %D A008015 W. M. Meier, D. H. Olson and Ch. Baerlocher, Atlas of Zeolite Structure Types, 4th Ed., Elsevier, 1996 %H A008015 R. W. Grosse-Kunstleve, <a href="/A008015/b008015.txt">Table of n, a(n) for n = 0..1000</a> %H A008015 R. W. Grosse-Kunstleve, <a href="/A005897/a005897.html">Coordination Sequences and Encyclopedia of Integer Sequences</a> %H A008015 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 A008015 Sean A. Irvine, <a href="/A008000/a008000_1.pdf">Generating Functions for Coordination Sequences of Zeolites, after Grosse-Kunstleve, Brunner, and Sloane</a> %H A008015 International Zeolite Association, <a href="http://www.iza-structure.org/databases/">Database of Zeolite Structures</a> %K A008015 nonn %O A008015 0,2 %A A008015 _Ralf W. Grosse-Kunstleve_