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A285274 0-limiting word of the morphism 0->10, 1-> 0111. 5
0, 1, 1, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

1

COMMENTS

The morphism 0->10, 1-> 0111 has two limiting words.  If the number of iterations is even, the 0-word evolves from 0 -> 10 -> 011110 -> 10011101110111011110 ->

01111010011101110111100111011101111001110111011110011101110111011110; if the number of iterations is odd, the 1-word evolves from 0 -> 10 -> 011110 -> 10011101110111011110, as in A285277.

LINKS

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

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {0, 1, 1, 1}}] &, {0}, 10]; (* A285274 *)

Flatten[Position[s, 0]];  (* A285275 *)

Flatten[Position[s, 1]];  (* A285276 *)

CROSSREFS

Cf. A285275, A285276, A285277.

Sequence in context: A131720 A131719 A100656 * A189081 A296084 A302777

Adjacent sequences:  A285271 A285272 A285273 * A285275 A285276 A285277

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Apr 24 2017

STATUS

approved

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Last modified April 6 15:23 EDT 2020. Contains 333276 sequences. (Running on oeis4.)