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A285137 Positions of 0 in A285136; complement of A285138. 3
2, 4, 6, 7, 8, 9, 11, 12, 13, 16, 18, 20, 22, 23, 24, 25, 27, 28, 29, 32, 34, 36, 38, 39, 40, 41, 43, 44, 45, 48, 49, 50, 51, 54, 55, 56, 57, 60, 61, 62, 63, 66, 68, 70, 72, 73, 74, 75, 77, 78, 79, 82, 83, 84, 85, 88, 89, 90, 91, 94, 96, 98, 100, 101, 102 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Conjecture: -1 < n*r - a(n) < 1 for n>=1, where r = 1 + sqrt(1/3).

LINKS

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

EXAMPLE

As a word, A285136 = 10101000010..., in which 0 is in positions 2,4,6,7,...

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {0, 0, 0, 1}}] &, {0}, 11]; (* A285136 *)

Flatten[Position[s, 0]];  (* A285137 *)

Flatten[Position[s, 1]];  (* A285138 *)

CROSSREFS

Cf. A285133, A285136, A285138.

Sequence in context: A229785 A101616 A322678 * A047295 A039045 A050481

Adjacent sequences:  A285134 A285135 A285136 * A285138 A285139 A285140

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Apr 20 2017

STATUS

approved

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Last modified May 17 19:51 EDT 2022. Contains 353778 sequences. (Running on oeis4.)