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A315832 Coordination sequence Gal.5.207.4 where G.u.t.v denotes the coordination sequence for a vertex of type v in tiling number t in the Galebach list of u-uniform tilings. 0
1, 6, 7, 11, 14, 20, 26, 25, 29, 34, 40, 46, 43, 47, 54, 60, 66, 61, 65, 74, 80, 86, 79, 83, 94, 100, 106, 97, 101, 114, 120, 126, 115, 119, 134, 140, 146, 133, 137, 154, 160, 166, 151, 155, 174, 180, 186, 169, 173, 194 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Note that there may be other vertices in the Galebach list of u-uniform tilings with u <= 6 that have this same coordination sequence. See the Galebach link for the complete list of A-numbers for all these tilings.

LINKS

Table of n, a(n) for n=0..49.

Brian Galebach, k-uniform tilings (k <= 6) and their A-numbers

FORMULA

Conjectures from Chai Wah Wu, Jan 10 2020: (Start)

a(n) = 2*a(n-5) - a(n-10) for n > 10.

G.f.: (x^10 + 6*x^9 + 7*x^8 + 11*x^7 + 14*x^6 + 18*x^5 + 14*x^4 + 11*x^3 + 7*x^2 + 6*x + 1)/(x^10 - 2*x^5 + 1). (End)

CROSSREFS

Sequence in context: A054504 A190612 A270431 * A224856 A182156 A166496

Adjacent sequences:  A315829 A315830 A315831 * A315833 A315834 A315835

KEYWORD

nonn

AUTHOR

Brian Galebach and N. J. A. Sloane, Jun 18 2018

STATUS

approved

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Last modified May 8 05:23 EDT 2021. Contains 343653 sequences. (Running on oeis4.)