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, May 01 2024: (Start)
a(n) = a(n-1) - a(n-3) + a(n-4) - a(n-6) + a(n-7) + a(n-9) - a(n-10) + a(n-12) - a(n-13) + a(n-15) - a(n-16) for n > 16.
G.f.: (x^16 + 5*x^15 + 5*x^14 + 3*x^13 + 9*x^12 + 7*x^11 + 7*x^10 + 11*x^9 + 18*x^8 + 11*x^7 + 7*x^6 + 7*x^5 + 9*x^4 + 3*x^3 + 5*x^2 + 5*x + 1)/((x - 1)^2*(x^2 + x + 1)*(x^6 + x^3 + 1)^2). (End)
CROSSREFS
KEYWORD
nonn
AUTHOR
Brian Galebach and N. J. A. Sloane, Jun 18 2018
STATUS
approved