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A311600
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Coordination sequence Gal.4.65.1 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, 4, 8, 12, 18, 22, 26, 32, 36, 38, 44, 50, 50, 58, 64, 68, 66, 76, 82, 78, 90, 96, 100, 94, 108, 114, 106, 122, 128, 132, 122, 140, 146, 134, 154, 160, 164, 150, 172, 178, 162, 186, 192, 196, 178, 204, 210, 190, 218, 224
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internal format)
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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-7) - a(n-14) for n > 16.
G.f.: (-2*x^16 + x^14 + 6*x^13 + 6*x^12 + 14*x^11 + 20*x^10 + 22*x^9 + 28*x^8 + 30*x^7 + 26*x^6 + 22*x^5 + 18*x^4 + 12*x^3 + 8*x^2 + 4*x + 1)/(x^14 - 2*x^7 + 1). (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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