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A315464
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Coordination sequence Gal.6.346.5 where Gal.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.
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2
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1, 6, 11, 16, 21, 25, 31, 35, 40, 45, 50, 56, 62, 67, 72, 77, 81, 87, 91, 96, 101, 106, 112, 118, 123, 128, 133, 137, 143, 147, 152, 157, 162, 168, 174, 179, 184, 189, 193, 199, 203, 208, 213, 218, 224, 230, 235, 240, 245, 249
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OFFSET
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0,2
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COMMENTS
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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.
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LINKS
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FORMULA
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a(n) = a(n-1) + a(n-11) - a(n-12) for n > 12 (conjectured).
G.f.: (x^12 + 5*x^11 + 5*x^10 + 5*x^9 + 5*x^8 + 4*x^7 + 6*x^6 + 4*x^5 + 5*x^4 + 5*x^3 + 5*x^2 + 5*x + 1)/(x^12 - x^11 - x + 1) (conjectured). (End)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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