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 A133185 #5 Nov 04 2013 13:01:49 %S A133185 14,21,24,30,42,60,63,70,75,84,90,100,105,108,112,120,126,135,147,150, %T A133185 168,175,189,210,224,225,240,250,252,280,294,300,315,336,350,360,375, %U A133185 378,405,420,448,450,490,504,525,560,567,588,600,630,640,672,675,686,700,735,756 %N A133185 Conjectured list of numbers that are 7-smooth (A002473) but are not in A133184. %H A133185 N. J. A. Sloane, <a href="/A133185/b133185.txt">Table of n, a(n) for n = 1..1000</a> %K A133185 nonn,base %O A133185 1,1 %A A133185 _J. H. Conway_ and _N. J. A. Sloane_, Jan 01 2008