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Positions of 0 in A284512; complement of A284514.
4

%I #6 Apr 06 2017 21:46:19

%S 4,5,6,11,12,13,18,19,20,22,23,24,26,27,28,30,31,32,37,38,39,44,45,46,

%T 51,52,53,58,59,60,62,63,64,66,67,68,70,71,72,77,78,79,84,85,86,91,92,

%U 93,98,99,100,102,103,104,106,107,108,110,111,112,117,118

%N Positions of 0 in A284512; complement of A284514.

%C Conjecture: a(n)/n -> (7 + sqrt(13))/6.

%H Clark Kimberling, <a href="/A284513/b284513.txt">Table of n, a(n) for n = 1..10000</a>

%t s = Nest[Flatten[# /. {0 -> {1}, 1 -> {0, 0, 0, 1}}] &, {0}, 9] (* A284512 *)

%t Flatten[Position[s, 0]] (* A284513 *)

%t Flatten[Position[s, 1]] (* A284514 *)

%Y Cf. A284512, A284514.

%K nonn,easy

%O 1,1

%A _Clark Kimberling_, Apr 05 2017