login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 59th year, we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A099206 Expansion of x^2*(2*x^11+2*x^9+2*x^8+x^7+2*x^6+x^5+x^4+x^3-x^2-x-1) / (x^9+x^6+2*x^3-1). 3
0, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 6, 2, 6, 15, 6, 15, 38, 15, 38, 97, 38, 97, 247, 97, 247, 629, 247, 629, 1602, 629, 1602, 4080, 1602, 4080, 10391, 4080, 10391, 26464, 10391, 26464, 67399, 26464, 67399, 171653, 67399, 171653, 437169, 171653, 437169 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,9

COMMENTS

Variant of three copies of A109545. - R. J. Mathar, Jul 10 2012

LINKS

Table of n, a(n) for n=1..50.

Stewart R. Hinsley, A Tile Associated with the 8th Unit Cubic Pisot Number [Broken link?]

Richard Kenyon, The Construction of Self-Similar Tilings, arXiv:math.MG/9505210

MATHEMATICA

CoefficientList[Series[x^2*(2*x^11 + 2*x^9 + 2*x^8 + x^7 + 2*x^6 + x^5 + x^4 + x^3 - x^2 - x - 1)/(x^9 + x^6 + 2*x^3 - 1), {x, 0, 100}], x]

CROSSREFS

Sequence in context: A050977 A053448 A060550 * A269223 A121341 A241737

Adjacent sequences: A099203 A099204 A099205 * A099207 A099208 A099209

KEYWORD

nonn,easy

AUTHOR

Roger L. Bagula, Mar 19 2005

EXTENSIONS

Better name from Colin Barker, Dec 26 2012

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 1 23:44 EST 2022. Contains 358485 sequences. (Running on oeis4.)