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 A133493 #7 Jun 17 2013 11:07:05 %S A133493 1,2,3,4,5,7,10,11,14,17,20,21,25,33,37,40,41,46,60,72,77,100,101,107, %T A133493 126,152,171,177,200,201,210,235,300,343,370,377,400,401,411,445,535, %U A133493 643,733,767,777,1000,1001,1012,1056,1202,1400,1576,1722,1766,1777 %N A133493 Base 8 version of A102363. %Y A133493 Cf. A102363. %K A133493 base,nonn,tabl %O A133493 1,2 %A A133493 David Williams (davidwilliams(AT)paxway.com), Dec 01 2007