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A314054
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Coordination sequence Gal.4.142.2 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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0
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1, 5, 11, 15, 21, 26, 32, 38, 43, 49, 53, 59, 64, 69, 75, 79, 85, 90, 96, 102, 107, 113, 117, 123, 128, 133, 139, 143, 149, 154, 160, 166, 171, 177, 181, 187, 192, 197, 203, 207, 213, 218, 224, 230, 235, 241, 245, 251, 256, 261
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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) = 2*a(n-1) - a(n-2) - a(n-4) + 2*a(n-5) - a(n-6) - a(n-8) + 2*a(n-9) - a(n-10) for n > 10.
G.f.: (x^10 + 3*x^9 + 2*x^8 - 2*x^7 + 3*x^6 + 2*x^5 + 3*x^4 - 2*x^3 + 2*x^2 + 3*x + 1)/(x^8*(x - 1)^2 + x^4*(x - 1)^2 + (x - 1)^2). (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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