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%I #4 Apr 09 2017 22:35:11
%S 2,3,4,5,7,8,9,11,12,13,15,16,17,18,20,21,22,24,25,26,28,29,30,31,33,
%T 34,35,37,38,39,41,42,43,44,46,47,48,50,51,52,54,55,56,58,59,60,61,63,
%U 64,65,67,68,69,71,72,73,74,76,77,78,80,81,82,84,85,86
%N Positions of 1 in A284674; complement of A284675.
%C Conjecture: -1 < n*r - a(n) < 4 for n >= 1, where r = (-1+sqrt(13))/2.
%H Clark Kimberling, <a href="/A284676/b284676.txt">Table of n, a(n) for n = 1..10000</a>
%t s = Nest[Flatten[# /. {0 -> {1}, 1 -> {0, 1, 1, 1}}] &, {0}, 6] (* A284674 *)
%t Flatten[Position[s, 0]] (* A284675 *)
%t Flatten[Position[s, 1]] (* A284676 *)
%Y Cf. A284674, A284675, A284679.
%K nonn,easy
%O 1,1
%A _Clark Kimberling_, Apr 08 2017
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