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A003324 A nonrepetitive sequence.
(Formerly M0443)
+0
1
1, 2, 3, 4, 1, 4, 3, 2, 1, 2, 3, 2, 1, 4, 3, 4, 1, 2, 3, 4, 1, 4, 3, 4, 1, 2, 3, 2, 1, 4, 3, 2, 1, 2, 3, 4, 1, 4, 3, 2, 1, 2, 3, 2, 1, 4, 3, 2, 1, 2, 3, 4, 1, 4, 3, 4, 1, 2, 3, 2, 1, 4, 3, 4, 1, 2, 3, 4, 1 (list; graph; listen)
OFFSET

1,2

REFERENCES

Dean, Richard A.; A sequence without repeats on x, x^{-1}, y, y^{-1}. Amer. Math. Monthly 72 1965 383-385.

Dejean, F.; Sur un theoreme de Thue. J. Combinatorial Theory Ser. A 13 (1972), 90-99.

CROSSREFS

Adjacent sequences: A003321 A003322 A003323 this_sequence A003325 A003326 A003327

Sequence in context: A074057 A141063 A138223 this_sequence A110630 A129717 A117742

KEYWORD

nonn,nice

AUTHOR

njas

page 1

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Last modified October 12 15:26 EDT 2008. Contains 144830 sequences.


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