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A080814 Successive words in the formal D0L language that produces the Thue-Morse sequence A001285 (start with 1, map 1 -> 12, 2 -> 21). 4
1, 12, 1221, 12212112, 1221211221121221, 12212112211212212112122112212112, 1221211221121221211212211221211221121221122121121221211221121221 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

REFERENCES

A. Salomaa, Jewels of Formal Language Theory. Computer Science Press, Rockville, MD, 1981, p. 5.

LINKS

Table of n, a(n) for n=1..7.

Jarosław Grytczuk, Thue type problems for graphs, points and numbers, Discrete Math., 308 (2008), 4419-4429.

CROSSREFS

Cf. A001285 (which is the limiting word), A010060, A080815.

Sequence in context: A033564 A301474 A054351 * A078294 A317953 A009155

Adjacent sequences:  A080811 A080812 A080813 * A080815 A080816 A080817

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Mar 26 2003

STATUS

approved

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Last modified September 21 00:05 EDT 2018. Contains 315247 sequences. (Running on oeis4.)