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 A151875 #6 Jan 23 2013 06:25:01 %S A151875 3,7,13,16,19,27 %N A151875 First differences are also Levenshtein distances between the integers written in English, including hyphenation. %H A151875 Author?, <a href="http://www.merriampark.com/ld.htm">Applet 1 for computing Levenshtein distance</a> %H A151875 Christian Charras, Thierry Lecroq, <a href="http://www-igm.univ-mlv.fr/~lecroq/seqcomp/node2.html">Applet 2 for computing Levenshtein distance</a> %e A151875 .Sequence....3...7...13...16...19...27 %e A151875 .Differences...4...6....3....3....8 %e A151875 .three.seven.thirteen.sixteen.nineteen.twenty-seven %e A151875 ......4.....6........3.......3........8 %K A151875 nonn,fini,full,word %O A151875 1,1 %A A151875 _Eric Angelini_, Jun 16 2009