A285127 - OEIS

%I #4 Apr 20 2017 09:24:10

%S 5,11,17,23,25,27,29,31,37,43,49,55,61,63,65,67,69,75,81,87,93,99,101,

%T 103,105,107,113,119,125,131,137,139,141,143,145,151,153,155,157,159,

%U 165,167,169,171,173,179,181,183,185,187,193,195,197,199,201,207

%N Positions of 1 in A285125; complement of A285126.

%C Conjecture: -3 < n*r - a(n) < 0 for n>=1, where r = 3.5621...

%H Clark Kimberling, <a href="/A285127/b285127.txt">Table of n, a(n) for n = 1..10000</a>

%e As a word, A285125 = 000010000010..., in which 1 is in positions 4,11,17,...

%t s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {0, 0, 0, 0}}] &, {0}, 14]; (* A285125 *)

%t Flatten[Position[s, 0]];  (* A285126 *)

%t Flatten[Position[s, 1]];  (* A285127 *)

%Y Cf. A285125, A285126.

%K nonn,easy

%O 1,1

%A _Clark Kimberling_, Apr 19 2017