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A315860
Coordination sequence Gal.4.12.4 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.
0
1, 6, 8, 12, 14, 22, 28, 28, 32, 34, 44, 50, 48, 52, 54, 66, 72, 68, 72, 74, 88, 94, 88, 92, 94, 110, 116, 108, 112, 114, 132, 138, 128, 132, 134, 154, 160, 148, 152, 154, 176, 182, 168, 172, 174, 198, 204, 188, 192, 194
OFFSET
0,2
COMMENTS
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.
FORMULA
Conjectures from Chai Wah Wu, Jan 25 2021: (Start)
a(n) = 2*a(n-5) - a(n-10) for n > 10.
G.f.: (x^10 + 6*x^9 + 8*x^8 + 12*x^7 + 16*x^6 + 20*x^5 + 14*x^4 + 12*x^3 + 8*x^2 + 6*x + 1)/(x^10 - 2*x^5 + 1). (End)
CROSSREFS
Sequence in context: A096175 A274349 A315859 * A315861 A027827 A328537
KEYWORD
nonn
AUTHOR
STATUS
approved