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A285618 Positions of 0 in A285617; complement of A285619. 3
2, 3, 4, 12, 13, 14, 16, 17, 18, 20, 21, 22, 24, 25, 26, 28, 29, 30, 32, 33, 34, 36, 37, 38, 46, 47, 48, 56, 57, 58, 66, 67, 68, 76, 77, 78, 86, 87, 88, 96, 97, 98, 106, 107, 108, 110, 111, 112, 114, 115, 116, 118, 119, 120, 122, 123, 124, 126, 127, 128, 130 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Conjecture:  a(n)/n -> 2.

LINKS

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

EXAMPLE

As a word, A285617 = 1000111111100010001001..., in which 0 is in positions 2,3,4,12,...

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {1, 0, 0, 0}}] &, {0}, 10] (* A285617 *)

Flatten[Position[s, 0]]  (* A285618 *)

Flatten[Position[s, 1]]  (* A285619 *)

CROSSREFS

Cf. A285617, A285619.

Sequence in context: A119799 A036779 A037339 * A062946 A210584 A060529

Adjacent sequences:  A285615 A285616 A285617 * A285619 A285620 A285621

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, May 01 2017

STATUS

approved

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Last modified September 25 10:38 EDT 2020. Contains 337337 sequences. (Running on oeis4.)