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A314994
Coordination sequence Gal.6.547.4 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, 5, 9, 15, 16, 24, 27, 34, 37, 44, 44, 52, 55, 62, 65, 72, 72, 80, 83, 90, 93, 100, 100, 108, 111, 118, 121, 128, 128, 136, 139, 146, 149, 156, 156, 164, 167, 174, 177, 184, 184, 192, 195, 202, 205, 212, 212, 220, 223, 230
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 27 2020: (Start)
a(n) = a(n-1) + a(n-6) - a(n-7) for n > 10.
G.f.: (-x^10 + x^9 - x^8 + 3*x^7 + 2*x^6 + 8*x^5 + x^4 + 6*x^3 + 4*x^2 + 4*x + 1)/(x^7 - x^6 - x + 1). (End)
CROSSREFS
Sequence in context: A228218 A361993 A314993 * A106503 A267648 A160593
KEYWORD
nonn
AUTHOR
STATUS
approved