login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A099206 Absolute value of a vector matrix Markov sequence with same polynomial as Kenyon's tile: x^3-2*x-x-1==0. 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; internal format)
OFFSET

1,9

LINKS

Stewart R. Hinsley, A Tile Associated with the 8th Unit Cubic Pisot Number

Richard Kenyon, The Construction of Self-Similar Tilings

Richard Kenyon, Papers

FORMULA

M = {{0, 1, 0}, {0, 0, 1}, {-1, 1, -2}}; v[0]={0, 1, 1}; a(n) = Abs[vector components of M^n*v[0]].

MATHEMATICA

M = {{0, 1, 0}, {0, 0, 1}, {-1, 1, -2}}; v[0] = {0, 1, 1}; v[1] = {1, 1, -1}; v[n_] := v[n] = M.v[n - 1]; a = Flatten[Table[v[n], {n, 0, 17}]]; Abs[a]

CROSSREFS

Sequence in context: A050977 A053448 A060550 * A121341 A174959 A126093

Adjacent sequences:  A099203 A099204 A099205 * A099207 A099208 A099209

KEYWORD

nonn

AUTHOR

Roger Bagula (rlbagulatftn(AT)yahoo.com), Mar 19 2005

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 16 10:53 EST 2012. Contains 205904 sequences.