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 A205673 #7 Jul 12 2012 00:40:00 %S A205673 5,11,11,13,17,17,17,19,19,23,23,23,23,29,29,29,29,29,31,31,31,37,37, %T A205673 37,37,41,41,41,41,41,41,43,43,43,43,43,47,47,47,47,47,47,47,53,53,53, %U A205673 53,53,53,53,53,59,59,59,59,59,59,59,59,59,61,61,61,61,61,61 %N A205673 Prime(A202560(n)), the n-th number s(k) such that 3 divides s(k)-s(j) for some j<k, where s(j)=prime(j). %C A205673 For a guide to related sequences, see A205558. %e A205673 (See the example at A205560.) %t A205673 (See the program at A205560.) %Y A205673 Cf. A205558, A205560. %K A205673 nonn %O A205673 1,1 %A A205673 _Clark Kimberling_, Jan 30 2012