login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A287663 {0->1, 1->000}-transform of the infinite Fibonacci word A003849. 3
1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1

COMMENTS

Guide to related sequences:

Transformation of A003849   Position sequences for 0 and 1

A287772, 0->1, 1->00          A287775, A050140

A287773, 0->011, 1->101       A287774, A287777

A287663: 0->1; 1->000         A287664, A287665

A287674: 0->1; 1->001         A287675, A287676

A287722: 0->1; 1->010         A287723, A287724

A287725: 0->1; 1->011         A287726, A287727

A287769: 0->1; 1->110         A276855, A287770

LINKS

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

EXAMPLE

As a word, A003849 = 0100101001001010010100100..., and replacing each 0 by 1 and each 1 by 000 gives 100011000100011000110001000110001...

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {0}}] &, {0}, 10] (* A003849 *)

w = StringJoin[Map[ToString, s]]

w1 = StringReplace[w, {"0" -> "1", "1" -> "000"}]

st = ToCharacterCode[w1] - 48    (* A287663 *)

Flatten[Position[st, 0]]  (* A287664 *)

Flatten[Position[st, 1]]  (* A287665 *)

CROSSREFS

Cf. A287664, A287665.

Sequence in context: A159638 A187615 A120528 * A195376 A164950 A068433

Adjacent sequences:  A287660 A287661 A287662 * A287664 A287665 A287666

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Jun 02 2017

EXTENSIONS

Edited by Clark Kimberling, Oct 09 2017

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 17 22:53 EDT 2019. Contains 327147 sequences. (Running on oeis4.)