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A194278
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Total number of polygons after n-th stage in the D-toothpick structure of A194270.
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4
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0, 0, 0, 0, 2, 8, 14, 16, 26, 38, 46, 48, 56, 72, 102
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OFFSET
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0,5
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COMMENTS
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The structure of the D-toothpick cellular automaton contains at least several tens of different types of polygons. For more information see A194276 and A194277.
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LINKS
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EXAMPLE
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Consider the structure with toothpicks of length 2 and D-toothpicks of length sqrt(2). After 3 stages the number of polygons in the structure is equal to 0. After 4 stages there are 2 hexagons, each with area = 6, so a(4) = 2. After 5 stages there are new 6 polygons: 2 hexagons, each with area = 8 and also 2 octagons, each with area = 14, so a(5) = 2+6 = 8.
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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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