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 A008026 #14 Apr 10 2018 08:26:35 %S A008026 1,4,9,17,29,45,64,85,110,140,173,208,247,294,347,399,449,504,570,641, %T A008026 708,774,848,932,1018,1101,1186,1278,1377,1479,1581,1684,1791,1907, %U A008026 2032,2158,2279,2400,2533,2678,2821,2956,3094,3247,3409,3566,3718,3876,4046 %N A008026 Coordination sequence T1 for Zeolite Code AFT. %D A008026 W. M. Meier, D. H. Olson and Ch. Baerlocher, Atlas of Zeolite Structure Types, 4th Ed., Elsevier, 1996 %H A008026 R. W. Grosse-Kunstleve, <a href="/A008026/b008026.txt">Table of n, a(n) for n = 0..1000</a> %H A008026 R. W. Grosse-Kunstleve, <a href="/A005897/a005897.html">Coordination Sequences and Encyclopedia of Integer Sequences</a> %H A008026 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 A008026 Sean A. Irvine, <a href="/A008000/a008000_1.pdf">Generating Functions for Coordination Sequences of Zeolites, after Grosse-Kunstleve, Brunner, and Sloane</a> %H A008026 International Zeolite Association, <a href="http://www.iza-structure.org/databases/">Database of Zeolite Structures</a> %F A008026 G.f.: (1 + 4*x + 9*x^2 + 68*x^20 + 82*x^15 + 73*x^17 + 68*x^19 + 67*x^21 + 64*x^22 + 59*x^23 + 51*x^24 + 40*x^25 + 28*x^26 + 17*x^27 + 9*x^28 + 4*x^29 + x^30 + 28*x^4 + 40*x^5 + 51*x^6 + 59*x^7 + 64*x^8 + 67*x^9 + 68*x^10 + 68*x^11 + 69*x^12 + 73*x^13 + 79*x^14 + 79*x^16 + 69*x^18 + 17*x^3) / (1-x^4) / (1-x^5) / (1-x^21). - _Sean A. Irvine_, Mar 13 2018 %K A008026 nonn %O A008026 0,2 %A A008026 _Ralf W. Grosse-Kunstleve_