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A287367 Positions of 2 in A287364. 4

%I

%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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Last modified September 19 20:55 EDT 2020. Contains 337182 sequences. (Running on oeis4.)