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A285343 Positions of 1 in A285341; complement of A285342. 4
1, 3, 4, 5, 7, 9, 10, 11, 13, 14, 15, 17, 18, 19, 21, 23, 24, 25, 27, 29, 30, 31, 33, 34, 35, 37, 38, 39, 41, 43, 44, 45, 47, 48, 49, 51, 52, 53, 55, 57, 58, 59, 61, 62, 63, 65, 66, 67, 69, 71, 72, 73, 75, 77, 78, 79, 81, 82, 83, 85, 86, 87, 89, 91, 92, 93 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Conjecture: -1 < n*sqrt(2) - a(n) < 1 for n>=1.

LINKS

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

EXAMPLE

As a word, A285341 = 1011101..., in which 1 is in positions 1,3,4,5,7,9,...

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {1, 0, 1, 1}}] &, {0}, 10]; (* A285341 *)

u = Flatten[Position[s, 0]];  (* A285342 *)

Flatten[Position[s, 1]];  (* A285343 *)

u/2 (* A285344)

CROSSREFS

Cf. A285341, A285342, A285344.

Sequence in context: A283736 A039017 A275319 * A335002 A276155 A273670

Adjacent sequences:  A285340 A285341 A285342 * A285344 A285345 A285346

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Apr 25 2017

STATUS

approved

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Last modified May 27 21:52 EDT 2020. Contains 334671 sequences. (Running on oeis4.)