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A286726 {0->10, 1->01}-transform of the Pell word, A171588. 1
1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1

LINKS

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

EXAMPLE

As a word, A171588 = 001001000100100010010010001001000..., and replacing each 0 by 10 and each 1 by 01 gives 1010011010011010100110100110101001101...

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {0, 0, 1}, 1 -> {0}}] &, {0}, 6] (* A171588 *)

w = StringJoin[Map[ToString, s]]

w1 = StringReplace[w, {"0" -> "10", "1"->"11"}]

st = ToCharacterCode[w1] - 48 ; (* A286726 *)

Flatten[Position[st, 0]];  (* A286687 *)

Flatten[Position[st, 1]];  (* A286686 *)

CROSSREFS

Cf. A171588, A286686, A286687.

Sequence in context: A098033 A284471 A135022 * A189209 A266754 A071982

Adjacent sequences:  A286723 A286724 A286725 * A286727 A286728 A286729

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, May 14 2017

STATUS

approved

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Last modified September 17 16:45 EDT 2021. Contains 347487 sequences. (Running on oeis4.)