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A285275 Positions of 0 in A285274; complement of A285276. 8
1, 6, 8, 9, 13, 17, 22, 23, 27, 31, 36, 37, 41, 45, 50, 51, 55, 59, 63, 68, 70, 71, 75, 79, 83, 88, 89, 94, 96, 97, 101, 105, 110, 111, 115, 119, 124, 125, 129, 133, 137, 142, 144, 145, 149, 153, 158, 159, 163, 167, 172, 173, 177, 181, 185, 190, 192, 193 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Conjecture: 0 < n*r - a(n) < 6 for n>=1, where r = 2+sqrt(2).

LINKS

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

EXAMPLE

As a word, A285274 = 011110..., in which 0 is in positions 1,6,8,9,13,...

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {0, 1, 1, 1}}] &, {0}, 10]; (* A285274 *)

Flatten[Position[s, 0]];  (* A285275 *)

Flatten[Position[s, 1]];  (* A285276 *)

CROSSREFS

Cf. A285276, A285277, A285278.

Sequence in context: A191980 A304412 A161982 * A117096 A067812 A337543

Adjacent sequences:  A285272 A285273 A285274 * A285276 A285277 A285278

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Apr 24 2017

STATUS

approved

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Last modified January 22 03:32 EST 2021. Contains 340360 sequences. (Running on oeis4.)