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A285342 Positions of 0 in A285341; complement of A285343. 4
2, 6, 8, 12, 16, 20, 22, 26, 28, 32, 36, 40, 42, 46, 50, 54, 56, 60, 64, 68, 70, 74, 76, 80, 84, 88, 90, 94, 96, 100, 104, 108, 110, 114, 118, 122, 124, 128, 132, 136, 138, 142, 144, 148, 152, 156, 158, 162, 166, 170, 172, 176, 180, 184, 186, 190, 192, 196 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Conjecture: 0 < n*r - a(n) < 4 for n>=1, where r = 2 + sqrt(2).

LINKS

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

EXAMPLE

As a word, A285341 = 1011101..., in which 0 is in positions 2,6,8,12,16,...

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, A285343, A285344.

Sequence in context: A084724 A283233 A189400 * A111051 A077561 A008407

Adjacent sequences:  A285339 A285340 A285341 * A285343 A285344 A285345

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Apr 25 2017

STATUS

approved

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Last modified January 23 21:56 EST 2022. Contains 350515 sequences. (Running on oeis4.)