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A305490 Fixed point of the morphism 0->120, 1->110, 2->100. 3
1, 1, 0, 1, 1, 0, 1, 2, 0, 1, 1, 0, 1, 1, 0, 1, 2, 0, 1, 1, 0, 1, 0, 0, 1, 2, 0, 1, 1, 0, 1, 1, 0, 1, 2, 0, 1, 1, 0, 1, 1, 0, 1, 2, 0, 1, 1, 0, 1, 0, 0, 1, 2, 0, 1, 1, 0, 1, 1, 0, 1, 2, 0, 1, 1, 0, 1, 2, 0, 1, 2, 0, 1, 1, 0, 1, 0, 0, 1, 2, 0, 1, 1, 0, 1, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,8

COMMENTS

This sequence is used to generate the anti-tribonacci sequence, A265389.  The positions of 1 are also the positions of 0 in Stewart's choral sequence, A116178.

LINKS

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

EXAMPLE

1 -> 110 -> 110110120 -> ...

MATHEMATICA

Nest[Flatten[# /. {0 -> {1, 2, 0}, 1 -> {1, 1, 0}, 2 -> {1, 0, 0}}] &, {0}, 9];

CROSSREFS

Cf. A265389, A116178, A305495, A305496.

Sequence in context: A122434 A141571 A164067 * A113706 A279952 A054845

Adjacent sequences:  A305487 A305488 A305489 * A305491 A305492 A305493

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Jun 02 2018

STATUS

approved

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Last modified July 19 04:24 EDT 2019. Contains 325144 sequences. (Running on oeis4.)