The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A105111 Triangle read by rows, based on the morphism f: 1->2, 2->3, 3->{3,5,4}, 4->5, 5->6, 6->{6,2,1}. First row is 1. If current row is a,b,c,..., then the next row is a,b,c,...,f(a),f(b),f(c),... 3
1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 3, 5, 4, 1, 2, 2, 3, 2, 3, 3, 3, 5, 4, 2, 3, 3, 3, 5, 4, 3, 3, 5, 4, 3, 5, 4, 3, 5, 4, 6, 5, 1, 2, 2, 3, 2, 3, 3, 3, 5, 4, 2, 3, 3, 3, 5, 4, 3, 3, 5, 4, 3, 5, 4, 3, 5, 4, 6, 5, 2, 3, 3, 3, 5, 4, 3, 3, 5, 4, 3, 5, 4, 3, 5, 4, 6, 5, 3, 3, 5, 4, 3, 5, 4, 3, 5, 4, 6, 5, 3, 5 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
COMMENTS
6-symbol substitution based on the second type Rauzy substitution that gives a tile in the Kenyon boundary method.
LINKS
MATHEMATICA
s[n_] := n /. {1 -> 2, 2 -> 3, 3 -> {3, 5, 4}, 4 -> 5, 5 -> 6, 6 -> {6, 2, 1}}; t[a_] := Join[a, Flatten[s /@ a]]; Flatten[ NestList[t, {1}, 5]]
CROSSREFS
Sequence in context: A366927 A103748 A104231 * A105112 A105113 A207328
KEYWORD
nonn,tabf
AUTHOR
Roger L. Bagula, Apr 07 2005
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 June 12 17:22 EDT 2024. Contains 373345 sequences. (Running on oeis4.)