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 A205686 #6 Jul 12 2012 00:40:00 %S A205686 7,13,17,17,23,23,29,31,37,37,37,41,41,43,43,43,47,47,47,47,53,53,53, %T A205686 53,59,59,61,61,61,67,67,67,67,67,71,71,71,71,73,73,73,73,73,79,79,79, %U A205686 83,83,83,83,83,83,89,89,89,89,97,97,97,97,97,97,101,101,101 %N A205686 Prime(A205684(n)), the n-th number s(k) such that 5 divides s(k)-s(j) for some j<k, where s(j)=prime(j). %C A205686 For a guide to related sequences, see A205558. %e A205686 (See the example at A205684.) %t A205686 (See the program at A205684.) %Y A205686 Cf. A205684, A205558. %K A205686 nonn %O A205686 1,1 %A A205686 _Clark Kimberling_, Jan 30 2012