|
|
A310650
|
|
Coordination sequence Gal.6.547.2 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.
|
|
0
|
|
|
1, 4, 6, 14, 20, 26, 26, 34, 34, 42, 48, 54, 54, 62, 62, 70, 76, 82, 82, 90, 90, 98, 104, 110, 110, 118, 118, 126, 132, 138, 138, 146, 146, 154, 160, 166, 166, 174, 174, 182, 188, 194, 194, 202, 202, 210, 216, 222, 222, 230
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
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
|
a(n) = a(n-1) + a(n-6) - a(n-7) for n > 8.
G.f.: (-2*x^8 + 5*x^7 - x^6 + 6*x^5 + 6*x^4 + 8*x^3 + 2*x^2 + 3*x + 1)/(x^7 - x^6 - x + 1). (End)
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|