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A284903 Positions of 1 in A284901; complement of A284902. 3
2, 3, 7, 12, 14, 16, 17, 22, 24, 26, 28, 29, 34, 35, 40, 41, 45, 50, 52, 54, 56, 57, 62, 63, 68, 69, 74, 75, 79, 84, 86, 88, 90, 91, 95, 100, 102, 104, 106, 107, 111, 116, 118, 120, 121, 126, 128, 130, 132, 133, 138, 139, 144, 145, 150, 151, 155, 160, 162 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Conjecture: -4 < n*r - a(n) < 6 for n >= 1, where r = 1 + sqrt(3).

LINKS

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

EXAMPLE

As a word, A284901 = 01100010..., in which 0 is in positions 1,4,5,6,8,9,11,...

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {0, 0, 1, 1}}] &, {0}, 6] (* A284901 *)

Flatten[Position[s, 0]]  (* A284902 *)

Flatten[Position[s, 1]]  (* A284903 *)

CROSSREFS

Cf. A284901, A284902.

Sequence in context: A046480 A137767 A191704 * A259226 A330593 A275374

Adjacent sequences:  A284900 A284901 A284902 * A284904 A284905 A284906

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Apr 16 2017

STATUS

approved

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Last modified January 21 16:22 EST 2020. Contains 331114 sequences. (Running on oeis4.)