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A317962
To get a(n), apply the morphism 1 -> 1121, 2-> 2 n times to 1.
3
1, 1121, 1121112121121, 1121112121121112111212112121121112121121, 1121112121121112111212112121121112121121112111212112111211121211212112111212112121121112121121112111212112121121112121121
OFFSET
1,2
COMMENTS
These are stages in the growth of the Chacon sequence over the alphabet {1,2}. See A049320 for further information and references.
LINKS
EXAMPLE
Over the more usual alphabet {0,1} these strings would be:
0
0010
0010001010010
0010001010010001000101001010010001010010
0010001010010001000101001010010001010010001000101001000100010100101001000101001010010001010010001000101001010010001010010
...
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Aug 24 2018
EXTENSIONS
Offset 1 by Seiichi Manyama, Aug 24 2018
STATUS
approved