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A246960
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Directions of the lines in the (Heighway) Dragon Curve.
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7
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0, 1, 2, 1, 2, 3, 2, 1, 2, 3, 0, 3, 2, 3, 2, 1, 2, 3, 0, 3, 0, 1, 0, 3, 2, 3, 0, 3, 2, 3, 2, 1, 2, 3, 0, 3, 0, 1, 0, 3, 0, 1, 2, 1, 0, 1, 0, 3, 2, 3, 0, 3, 0, 1, 0, 3, 2, 3, 0, 3, 2, 3, 2, 1, 2, 3, 0, 3, 0, 1, 0, 3, 0, 1, 2, 1, 0, 1, 0, 3, 0, 1, 2, 1, 2, 3, 2, 1, 0, 1, 2, 1, 0, 1, 0, 3, 2, 3, 0, 3, 0, 1, 0, 3, 0
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OFFSET
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0,3
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COMMENTS
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Fixed point of the morphism: 0 --> 01, 1 --> 21, 2 --> 23, 3 --> 03.
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LINKS
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FORMULA
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MATHEMATICA
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Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {2, 1}, 2 -> {2, 3}, 3 -> {0, 3}}] &, {0}, 7]
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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