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 A057307 #11 Apr 10 2018 08:26:36 %S A057307 1,4,12,26,45,64,96,134,186,230,290,339,395,468,543,647,729,829,911, %T A057307 1000,1126,1242,1373,1503,1627,1757,1904,2051,2217,2393,2553,2702, %U A057307 2872,3059,3251,3495,3687,3877,4081,4260,4483,4737,5005,5259,5496,5716 %N A057307 Coordination sequence T4 for Zeolite Code MTF. %H A057307 R. W. Grosse-Kunstleve, <a href="/A057307/b057307.txt">Table of n, a(n) for n = 0..1000</a> %H A057307 R. W. Grosse-Kunstleve, <a href="/A005897/a005897.html">Coordination Sequences and Encyclopedia of Integer Sequences</a> %H A057307 Sean A. Irvine, <a href="/A008000/a008000_1.pdf">Generating Functions for Coordination Sequences of Zeolites, after Grosse-Kunstleve, Brunner, and Sloane</a> %H A057307 International Zeolite Association, <a href="http://www.iza-structure.org/databases/">Database of Zeolite Structures</a> %K A057307 nonn %O A057307 0,2 %A A057307 _Ralf W. Grosse-Kunstleve_