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 A057304 #11 Apr 10 2018 08:26:36 %S A057304 1,4,11,24,45,77,109,137,174,224,280,344,417,491,560,622,707,818,921, %T A057304 1026,1141,1247,1360,1490,1625,1772,1922,2060,2202,2366,2538,2720, %U A057304 2921,3106,3266,3427,3616,3859,4107,4323,4554,4779,4958,5163,5445,5734 %N A057304 Coordination sequence T1 for Zeolite Code MTF. %H A057304 R. W. Grosse-Kunstleve, <a href="/A057304/b057304.txt">Table of n, a(n) for n = 0..1000</a> %H A057304 R. W. Grosse-Kunstleve, <a href="/A005897/a005897.html">Coordination Sequences and Encyclopedia of Integer Sequences</a> %H A057304 Sean A. Irvine, <a href="/A008000/a008000_1.pdf">Generating Functions for Coordination Sequences of Zeolites, after Grosse-Kunstleve, Brunner, and Sloane</a> %H A057304 International Zeolite Association, <a href="http://www.iza-structure.org/databases/">Database of Zeolite Structures</a> %K A057304 nonn %O A057304 0,2 %A A057304 _Ralf W. Grosse-Kunstleve_