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%I #7 Feb 10 2018 19:42:12
%S 4,9,12,15,17,19,24,29,34,37,40,42,44,49,52,55,57,59,64,67,70,72,74,
%T 79,81,83,88,90,92,97,102,107,110,113,115,117,122,127,132,135,138,140,
%U 142,147,152,157,160,163,165,167,172,175,178,180,182,187,190,193
%N Positions of 2 in A287364.
%H Clark Kimberling, <a href="/A287367/b287367.txt">Table of n, a(n) for n = 1..10000</a>
%t s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {2, 1}, 2 -> 0}] &, {0}, 13] (* A287364 *)
%t Flatten[Position[s, 0]] (* A287365 *)
%t Flatten[Position[s, 1]] (* A287366 *)
%t Flatten[Position[s, 2]] (* A287367 *)
%Y Cf. A287365, A287366.
%K nonn,easy
%O 1,1
%A _Clark Kimberling_, May 24 2017
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