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 A205443 #5 Mar 30 2012 18:58:11 %S A205443 1,1,2,1,5,1,4,3,6,4,2,1,7,3,10,2,9,6,4,4,4,1,12,6,25,6,18,3,3,9,7,2, %T A205443 1,9,20,6,19,4,14,15,10,3,22,1,30,12,8,6,28,24,18,6,27,18,5,12,3,1,14, %U A205443 9 %N A205443 The index j<k such that n divides s(k)-s(j) for some j, where s(j)=Fibonacci(2j-1), and k is the least index for which such a j exists. %C A205443 For a guide to related sequences, see A204892. %t A205443 (See the program at A205442.) %Y A205443 Cf. A205442, A204892. %K A205443 nonn %O A205443 1,3 %A A205443 _Clark Kimberling_, Jan 27 2012