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A285401 Positions of 0 in A285177; complement of A285402. 6
1, 2, 4, 5, 7, 8, 10, 11, 17, 18, 20, 21, 23, 24, 26, 27, 29, 30, 36, 37, 39, 40, 42, 43, 45, 46, 48, 49, 55, 56, 58, 59, 61, 62, 64, 65, 67, 68, 74, 75, 81, 82, 88, 89, 95, 96, 102, 103, 105, 106, 108, 109, 111, 112, 114, 115, 121, 122, 124, 125, 127, 128 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Conjecture: a(n)/n -> (61-sqrt(3))/26 = 2.279...

LINKS

Clark Kimberling, Table of n, a(n) for n = 1..10000

EXAMPLE

As a word, A285177 = 001001..., in which 0 is in positions 1,2,4,5,7,...

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {0, 0, 1}}] &, {0}, 10] (* A285117 *)

Flatten[Position[s, 0]]  (* A285401 *)

Flatten[Position[s, 1]]  (* A285402 *)

CROSSREFS

Cf. A285177, A285402, A285403.

Sequence in context: A277121 A325112 A102338 * A139449 A204399 A020914

Adjacent sequences:  A285398 A285399 A285400 * A285402 A285403 A285404

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Apr 26 2017

STATUS

approved

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Last modified April 3 17:03 EDT 2020. Contains 333197 sequences. (Running on oeis4.)