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 A205556 #8 Mar 30 2012 18:58:11 %S A205556 2,4,6,8,11,13,14,16,18,19,21,23,26,29,31,32,34,35,37,39,40,42,43,45, %T A205556 47,50,53,56,58,59,61,62,64,65,67,69,70,72,73,75,76,78,80,83,86,89,92, %U A205556 94,95,97,98,100,101,103,104,106,108,109,111,112,114,115,117 %N A205556 Positions of multiples of 2 in A204922 (differences of Fibonacci numbers). %C A205556 For a guide to related sequences, see A205840. %e A205556 In A204922=(1,2,1,4,3,2,7,6,5,3,12,11,...), multiples of 2 are in positions 2,4,6,8,11,... See the example at A205837. %t A205556 (See the program at A205837.) %Y A205556 Cf. A204890, A205837, A205840. %K A205556 nonn %O A205556 1,1 %A A205556 _Clark Kimberling_, Feb 01 2012