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 A154755 #2 Mar 30 2012 17:22:54 %S A154755 2,3,5,11,17,23,29,31,37,41,43,47,53,59,67,71,83,89,97,101,107,113, %T A154755 131,137,149,157,167,173,179,181,191,197,223,227,229,233,239,251,257, %U A154755 263,269,277,281,283,293,311,313,317,331,347,353,359,367,379,383,389,397 %N A154755 Primes p such that ratio in A154754 is 1. %C A154755 All primes of the form 6k-1 are in this sequence. In addition, about half of all primes of the form 6k+1 appear to be here. See A154756 for the primes not in this sequence. %Y A154755 A000073 %K A154755 nonn %O A154755 1,1 %A A154755 _T. D. Noe_, Jan 15 2009