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 A008030 #18 Apr 10 2018 08:26:35 %S A008030 1,4,9,16,23,34,57,82,98,115,141,178,224,259,282,322,377,430,486,535, %T A008030 578,643,717,781,851,919,984,1072,1160,1231,1320,1417,1502,1600,1698, %U A008030 1789,1907,2023,2115,2227,2348,2461,2598,2728,2831,2962,3108,3241,3392 %N A008030 Coordination sequence T2 for Zeolite Code AFY. %D A008030 W. M. Meier, D. H. Olson and Ch. Baerlocher, Atlas of Zeolite Structure Types, 4th Ed., Elsevier, 1996 %H A008030 R. W. Grosse-Kunstleve, <a href="/A008030/b008030.txt">Table of n, a(n) for n = 0..1000</a> %H A008030 R. W. Grosse-Kunstleve, <a href="/A005897/a005897.html">Coordination Sequences and Encyclopedia of Integer Sequences</a> %H A008030 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 A008030 Sean A. Irvine, <a href="/A008000/a008000_1.pdf">Generating Functions for Coordination Sequences of Zeolites, after Grosse-Kunstleve, Brunner, and Sloane</a> %H A008030 International Zeolite Association, <a href="http://www.iza-structure.org/databases/">Database of Zeolite Structures</a> %F A008030 G.f.: (1+x)^3 * (1+4*x^2-x^3+7*x^4+x^5+9*x^6+x^7+7*x^8-x^9+4*x^10+x^12) / ((1-x)^3 * (1-x+x^2) * (1+x^2) * (1+x+x^2)^2 * (1+x+x^2+x^3+x^4)). - _Colin Barker_, Dec 20 2015 %K A008030 nonn %O A008030 0,2 %A A008030 _Ralf W. Grosse-Kunstleve_