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A286925 {0->01,1->00}-transform of the Sturmian word A080764. 3
0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1

COMMENTS

A080764 = 1101101110110111011011011101..., and replacing each 0 by 01 and each 1 by 00 gives 0000010000010000000100000100000001000001..., in which the positions of 0 are given by A286926, and of 1, by A286927.

LINKS

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

MATHEMATICA

s = Nest[Flatten[# /. {0 -> 1, 1 -> {1, 1, 0}}] &, {1}, 11]; (* Sturmian word A080764 *)

w = StringJoin[Map[ToString, s]];

w1 = StringReplace[w, {"0" -> "01", "1" -> "00"}]

st = ToCharacterCode[w1] - 48 ; (* A286925 *)

Flatten[Position[st, 0]];  (* A286926 *)

Flatten[Position[st, 1]];  (* A286927 *)

CROSSREFS

Cf. A080764, A286926, A286927, A286688.

Sequence in context: A078926 A324824 A025458 * A179527 A172051 A093958

Adjacent sequences:  A286922 A286923 A286924 * A286926 A286927 A286928

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, May 18 2017

STATUS

approved

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Last modified May 24 20:53 EDT 2019. Contains 323534 sequences. (Running on oeis4.)