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.
LINKS
FORMULA
Conjectures from Chai Wah Wu, Dec 24 2019: (Start)
a(n) = - a(n-2) + a(n-3) + 2*a(n-5) + a(n-7) - a(n-8) - a(n-10) for n > 12.
G.f.: (-3*x^12 + x^10 + 7*x^9 + 10*x^8 + 13*x^7 + 15*x^6 + 17*x^5 + 14*x^4 + 12*x^3 + 7*x^2 + 4*x + 1)/(x^10 + x^8 - x^7 - 2*x^5 - x^3 + x^2 + 1). (End)
CROSSREFS
KEYWORD
nonn
AUTHOR
Brian Galebach and N. J. A. Sloane, Jun 18 2018
STATUS
approved