OFFSET
1,3
COMMENTS
This is the fixed point of the morphism 0->012, 1->210, 2->021 starting with 0. Let u be the (nonperiodic) sequence of positions of 0, and likewise, v for 1 and w for 2; then u(n)/n -> 3, v(n)/n -> 3, w(n)/n -> 3.
In the following guide to related sequences, column 1 indexes fixed points on {1,2,3}, and columns 2,3,4 match the position sequences of 0, 1, 2. Those sequences therefore comprise a 3-way splitting of the positive integers.
Fixed point and morphism Position sequences
LINKS
EXAMPLE
First three iterations of the morphism: 012, 012210021, 012210021021210012012021210.
MATHEMATICA
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, May 25 2017
EXTENSIONS
Two entries in overview corrected by Georg Fischer, Sep 20 2021
STATUS
approved