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A285138 Positions of 1 in A285136; complement of A285137. 3
1, 3, 5, 10, 14, 15, 17, 19, 21, 26, 30, 31, 33, 35, 37, 42, 46, 47, 52, 53, 58, 59, 64, 65, 67, 69, 71, 76, 80, 81, 86, 87, 92, 93, 95, 97, 99, 104, 105, 107, 109, 114, 118, 119, 121, 123, 125, 130, 134, 135, 137, 139, 141, 146, 150, 151, 153, 155, 157, 162 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

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

LINKS

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

EXAMPLE

As a word, A285136 = 10101000010..., in which 1 is in positions 1,3,5,10,...

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, A285137.

Sequence in context: A137395 A001767 A273160 * A310018 A048214 A195094

Adjacent sequences:  A285135 A285136 A285137 * A285139 A285140 A285141

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Apr 20 2017

STATUS

approved

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Last modified May 16 15:56 EDT 2022. Contains 353706 sequences. (Running on oeis4.)