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 A194278 Total number of polygons after n-th stage in the D-toothpick structure of A194270. 4
 0, 0, 0, 0, 2, 8, 14, 16, 26, 38, 46, 48, 56, 72, 102 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,5 COMMENTS 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. LINKS N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS EXAMPLE 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. CROSSREFS Cf. A160124, A170926, A161418, A161828, A161836, A194270, A194276, A194277. Sequence in context: A319964 A002248 A333968 * A050619 A056715 A160556 Adjacent sequences:  A194275 A194276 A194277 * A194279 A194280 A194281 KEYWORD nonn,more AUTHOR Omar E. Pol, Aug 26 2011 STATUS approved

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Last modified August 15 13:27 EDT 2020. Contains 336504 sequences. (Running on oeis4.)