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A315640
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Coordination sequence Gal.6.556.5 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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0
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1, 6, 12, 16, 21, 25, 32, 38, 44, 49, 53, 58, 62, 70, 76, 82, 86, 90, 95, 99, 108, 114, 120, 123, 127, 132, 136, 146, 152, 158, 160, 164, 169, 173, 184, 190, 196, 197, 201, 206, 210, 222, 228, 234, 234, 238, 243, 247, 260, 266
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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 > 14.
G.f.: (x^14 + 6*x^13 + 12*x^12 + 16*x^11 + 21*x^10 + 25*x^9 + 32*x^8 + 36*x^7 + 32*x^6 + 25*x^5 + 21*x^4 + 16*x^3 + 12*x^2 + 6*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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