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A310618
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Coordination sequence Gal.4.121.2 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, 4, 6, 14, 16, 18, 28, 26, 36, 36, 38, 50, 46, 58, 56, 58, 72, 66, 80, 76, 78, 94, 86, 102, 96, 98, 116, 106, 124, 116, 118, 138, 126, 146, 136, 138, 160, 146, 168, 156, 158, 182, 166, 190, 176, 178, 204, 186, 212, 196
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history;
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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-5) - a(n-10) for n > 11.
G.f.: (-2*x^11 + 3*x^10 + 4*x^9 + 8*x^8 + 14*x^7 + 20*x^6 + 16*x^5 + 16*x^4 + 14*x^3 + 6*x^2 + 4*x + 1)/(x^10 - 2*x^5 + 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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