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 A134773 #3 Mar 30 2012 17:26:24 %S A134773 11,23,27,43,47,55,59,87,91,95,107,111,119,123,171,173,175,179,183, %T A134773 187,191,203,215,219,223,235,239,247,251,299,343,345,347,349,351,355, %U A134773 359,363,365,367,371,375,379,383,395,407,411,427,429,431,435 %N A134773 Primitive elements of A180054. %K A134773 nonn %O A134773 1,1 %A A134773 _Zak Seidov_, Aug 08 2010