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A314161
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Coordination sequence Gal.4.140.2 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, 16, 22, 28, 33, 39, 44, 49, 55, 60, 66, 72, 77, 83, 88, 93, 99, 104, 110, 116, 121, 127, 132, 137, 143, 148, 154, 160, 165, 171, 176, 181, 187, 192, 198, 204, 209, 215, 220, 225, 231, 236, 242, 248, 253, 259, 264, 269
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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) for n > 6.
G.f.: (x^6 + 3*x^5 + 2*x^4 - x^3 + 2*x^2 + 3*x + 1)/((x - 1)^2*(x^4 + 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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