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 A205846 #8 Mar 30 2012 18:58:12 %S A205846 4,11,14,16,19,21,23,31,37,40,42,43,50,56,59,61,62,65,67,70,72,73,76, %T A205846 78,80,86,94,100,106,109,111,112,115,117,118,125,131,137,140,142,143, %U A205846 146,148,149,152,154,157,159,160,163,165,166,169,171,173,179 %N A205846 Positions of multiples of 4 in A204922 (differences of Fibonacci numbers). %C A205846 For a guide to related sequences, see A205840. %e A205846 In A204922=(1,2,1,4,3,2,7,6,5,3,12,11,...), multiples of 4 are in positions 4,11,14,16,19,... See the example at A205847. %t A205846 (See the program at A205847.) %Y A205846 Cf. A204890, A205847, A205840. %K A205846 nonn %O A205846 1,1 %A A205846 _Clark Kimberling_, Feb 02 2012