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A225186
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Squares in the Thue-Morse word A001285.
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3
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11, 22, 1212, 2121, 121121, 212212, 12211221, 21122112, 122112122112, 211221211221, 1221211212212112, 2112122121121221, 122121121221122121121221, 211212212112211212212112, 12212112211212211221211221121221, 21121221122121122112122112212112
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OFFSET
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1,1
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COMMENTS
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A square in an infinite word w is a factor of the form uu, where u has finite length.
Consists of 11, 22, 121121, 212212 and their repeated images under the morphism 1 -> 12, 2 -> 21.
Replacing {1,2} by {0,1} gives the squares in A010060.
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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