# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a289105 Showing 1-1 of 1 %I A289105 #4 Jun 28 2017 13:23:44 %S A289105 1,2,4,5,6,7,8,9,11,12,13,15,16,19,20,22,23,26,27,29,31,32,33,34,37, %T A289105 38,40,42,43,44,45,48,51,52,54,55,56,58,60,61,62,63,66,69,70,72,73,74, %U A289105 76,78,79,80,82,83,84,85,88,89,91,92,95,98,99,101,102,103 %N A289105 Positions of 0 in A289104; complement of A289106. %C A289105 Conjecture: a(n)/n -> (1 + sqrt(5))/2 = golden ratio = tau, and 1 < a(n)/n < tau for n >= 1. %H A289105 Clark Kimberling, Table of n, a(n) for n = 1..10000 %t A289105 z = 11; (* number of iterates *) %t A289105 s = {0, 0}; w[0] = StringJoin[Map[ToString, s]]; %t A289105 w[n_] := StringReplace[w[n - 1], {"00" -> "0010", "01" -> "011", "10" -> "000"}] %t A289105 TableForm[Table[w[n], {n, 0, 10}]] %t A289105 st = ToCharacterCode[w[z]] - 48 (* A289104 *) %t A289105 Flatten[Position[st, 0]] (* A289105 *) %t A289105 Flatten[Position[st, 1]] (* A289106 *) %Y A289105 Cf. A001622, A289105, A289106. %K A289105 nonn,easy %O A289105 1,2 %A A289105 _Clark Kimberling_, Jun 28 2017 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE