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A287110 Positions of 1 in A287108. 4

%I

%S 1,5,8,10,11,15,17,18,21,22,24,28,31,33,34,37,38,40,44,46,47,49,53,54,

%T 58,61,63,64,68,70,71,74,75,77,81,83,84,86,90,91,95,98,100,101,104,

%U 105,107,111,112,116,119,121,122,124,128,131,133,134,138,140,141

%N Positions of 1 in A287108.

%H Clark Kimberling, <a href="/A287110/b287110.txt">Table of n, a(n) for n = 1..10000</a>

%t s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {2, 1}, 2 -> 0}] &, {0}, 10] (* A287108 *)

%t Flatten[Position[s, 0]] (* A287109 *)

%t Flatten[Position[s, 1]] (* A287110 *)

%t Flatten[Position[s, 2]] (* A287111 *)

%Y Cf. A287108, A287109, A287111.

%K nonn,easy

%O 1,2

%A _Clark Kimberling_, May 21 2017

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Last modified May 23 03:15 EDT 2022. Contains 353959 sequences. (Running on oeis4.)