%I #4 May 21 2017 14:35:09
%S 3,8,12,19,24,28,32,37,41,48,55,60,64,71,76,80,84,89,93,97,102,106,
%T 113,118,122,126,131,135,142,149,154,158,165,172,177,181,188,193,197,
%U 201,206,210,217,224,229,233,240,245,249,253,258,262,266,271,275,282
%N Positions of 2 in A287002.
%H Clark Kimberling, <a href="/A287081/b287081.txt">Table of n, a(n) for n = 1..10000</a>
%t s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {2, 0}, 2 -> 1}] &, {0}, 10] (* A287002 *)
%t Flatten[Position[s, 0]] (* A287003 *)
%t Flatten[Position[s, 1]] (* A287004 *)
%t Flatten[Position[s, 2]] (* A287081 *)
%Y Cf. A287002, A287003, A287004.
%K nonn,easy
%O 1,1
%A _Clark Kimberling_, May 21 2017