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%I #7 May 26 2017 02:41:35
%S 3,6,8,10,11,12,15,18,21,23,25,26,27,30,32,34,35,36,39,41,43,44,45,48,
%T 49,50,53,54,55,58,61,64,66,68,69,70,73,76,79,81,83,84,85,88,91,94,96,
%U 98,99,100,103,105,107,108,109,112,114,116,117,118,121,122
%N Positions of 1 in A287360.
%H Clark Kimberling, <a href="/A287362/b287362.txt">Table of n, a(n) for n = 1..10000</a>
%t s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {2, 1}, 2 -> 0}] &, {0}, 12] (* A287360 *)
%t Flatten[Position[s, 0]] (* A287361 *)
%t Flatten[Position[s, 1]] (* A287362 *)
%t Flatten[Position[s, 2]] (* A287363 *)
%Y Cf. A287360, A287361, A287363.
%K nonn,easy
%O 1,1
%A _Clark Kimberling_, May 24 2017
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