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 A057305 #11 Apr 10 2018 08:26:36 %S A057305 1,4,12,24,42,70,95,136,184,227,277,346,399,467,560,631,731,814,905, %T A057305 1013,1120,1257,1366,1498,1616,1754,1911,2046,2223,2390,2537,2709, %U A057305 2869,3056,3269,3477,3682,3866,4058,4280,4494,4747,5004,5236,5484,5698 %N A057305 Coordination sequence T2 for Zeolite Code MTF. %H A057305 R. W. Grosse-Kunstleve, <a href="/A057305/b057305.txt">Table of n, a(n) for n = 0..1000</a> %H A057305 R. W. Grosse-Kunstleve, <a href="/A005897/a005897.html">Coordination Sequences and Encyclopedia of Integer Sequences</a> %H A057305 Sean A. Irvine, <a href="/A008000/a008000_1.pdf">Generating Functions for Coordination Sequences of Zeolites, after Grosse-Kunstleve, Brunner, and Sloane</a> %H A057305 International Zeolite Association, <a href="http://www.iza-structure.org/databases/">Database of Zeolite Structures</a> %K A057305 nonn %O A057305 0,2 %A A057305 _Ralf W. Grosse-Kunstleve_