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A309236
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Langton's ant on a circular grid with 4-fold rotational symmetry: number of black cells on the grid after n moves of the ant.
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1
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0, 1, 2, 3, 2, 3, 4, 5, 4, 3, 2, 3, 2, 3, 4, 3, 4, 5, 6, 5, 6, 7, 6, 7, 6, 5, 4, 5, 6, 7, 6, 7, 8, 9, 8, 7, 6, 7, 6, 5, 4, 3, 4, 5, 6, 5, 6, 5, 6, 7, 6
(list;
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listen;
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internal format)
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OFFSET
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0,3
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COMMENTS
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On a white circular segment, turn right to the next edge of the segment, flip the color of that segment, then move onto the segment adjacent to that edge.
On a black circular segment, turn left to the next edge of the segment, flip the color of that segment, then move onto the segment adjacent to that edge.
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LINKS
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EXAMPLE
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See illustrations in Fröhlich, 2019.
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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STATUS
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approved
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