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 A106668 #1 Jul 19 2005 03:00:00 %S A106668 0,1,4,10,15,17 %N A106668 Marks on lexicographically second 6-mark optimal Golomb ruler. %C A106668 Golomb ruler: Finite set with property that no difference between any two numbers is repeated and largest number is minimized. %H A106668 J. B. Shearer, <a href="http://www.research.ibm.com/people/s/shearer/grtab.html">Golomb Ruler Table</a> %H A106668 <a href="http://scholar.google.com/scholar?q=golomb+ruler">Google Scholar</a> %Y A106668 Cf. A079283, A031869. %K A106668 fini,nonn,full %O A106668 0,3 %A A106668 Garet Sheppard (gar3ts(AT)gmail.com), May 13 2005