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A302176 Coordination sequence for a node in a Penrose tiling with 5-fold symmetry. 5
1, 5, 5, 20, 15, 25, 20, 45, 35, 50, 45, 45, 55, 75, 60, 65, 65, 100, 80, 105, 95, 85, 95, 130, 115, 135, 120, 105, 135, 160, 135, 125, 145, 185, 160, 190, 165, 145, 180, 215, 185, 165, 185, 240, 205, 245, 220, 185, 215, 270, 240, 275, 245, 205, 255 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
COMMENTS
Note that this is not THE Penrose tiling, but a variant. See Klee link. - N. J. A. Sloane, Jan 07 2020
LINKS
Bradley Klee, Fixing RegionMember & A302176 at once, Wolfram Community, Jan 06 2019
Bradley Klee, Illustration of initial terms (1) (extracted from the Wolfram Community link)
Bradley Klee, Illustration of initial terms (2) (extracted from the Wolfram Community link)
Anton Shutov and Andrey Maleev, Coordination numbers of the vertex graph of a Penrose tiling, Acta Cryst. (2018). A74, 112-122.
Anton Shutov and Andrey Maleev, Coordination numbers of the vertex graph of a Penrose tiling, Acta Cryst. (2018). A74, 112-122. [Annotated copy of Fig. 1, to illustrate initial terms of the sequence; with permission.]
MATHEMATICA
See Klee link.
CROSSREFS
Sequence in context: A201803 A151789 A339320 * A094338 A205882 A099921
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Apr 03 2018
EXTENSIONS
More terms from Bradley Klee, Jan 09 2020
STATUS
approved

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Last modified March 2 18:02 EST 2024. Contains 370498 sequences. (Running on oeis4.)