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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)



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.


Table of n, a(n) for n=0..14.

N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS

Index entries for sequences related to toothpick sequences


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.


Cf. A160124, A170926, A161418, A161828, A161836, A194270, A194276, A194277.

Sequence in context: A066567 A319964 A002248 * A050619 A056715 A160556

Adjacent sequences:  A194275 A194276 A194277 * A194279 A194280 A194281




Omar E. Pol, Aug 26 2011



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Last modified January 20 04:21 EST 2019. Contains 319323 sequences. (Running on oeis4.)