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 A205685 #5 Mar 30 2012 18:58:11 %S A205685 1,2,1,4,2,6,8,5,1,4,7,5,11,2,6,9,1,4,7,12,2,6,9,14,8,10,5,11,13,1,4, %T A205685 7,12,15,5,11,13,18,2,6,9,14,16,8,10,17,2,6,9,14,16,21,8,10,17,22,1,4, %U A205685 7,12,15,19,5,11,13,18,20,2,6,9,14,16,21,23,1,4,7,12,15,19 %N A205685 The number j such that 5 divides prime(k)-prime(j), where k(n)=A205684(n). %C A205685 For a guide to related sequences, see A205558. %e A205685 (See the example at A205684.) %t A205685 (See the program at A205684.) %Y A205685 Cf. A205684, A205558. %K A205685 nonn %O A205685 1,2 %A A205685 _Clark Kimberling_, Jan 30 2012