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A287519 Positions of 0 in A287457; complement of A287186. 4

%I

%S 2,3,4,5,6,7,8,10,11,12,13,14,15,17,18,19,20,21,22,24,25,26,28,29,30,

%T 31,32,33,34,36,37,38,39,40,41,43,44,45,47,48,49,51,52,53,54,55,56,58,

%U 59,60,61,62,63,65,66,67,69,70,71,73,74,75,76,77,78,80

%N Positions of 0 in A287457; complement of A287186.

%C Conjecture: a(n)/n -> 1.20..., and if m denotes this number, then -1 < m - a(n)/n) < 1 for n >= 1.

%H Clark Kimberling, <a href="/A287519/b287519.txt">Table of n, a(n) for n = 1..10000</a>

%t s = {0, 0}; w[0] = StringJoin[Map[ToString, s]];

%t w[n_] := StringReplace[w[n - 1], {"00" -> "1000", "10" -> "000"}]

%t Table[w[n], {n, 0, 8}]

%t st = ToCharacterCode[w[23]] - 48 (* A287457 *)

%t Flatten[Position[st, 0]] (* A287519 *)

%t Flatten[Position[st, 1]] (* A287186 *)

%Y Cf. A287457, A287186.

%K nonn,easy

%O 1,1

%A _Clark Kimberling_, Jun 17 2017

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Last modified May 24 04:25 EDT 2022. Contains 354005 sequences. (Running on oeis4.)