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A285599
1-limiting word of the morphism 0->11, 1-> 0111.
6
1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1
OFFSET
1
COMMENTS
The morphism 0->11, 1-> 0111 has two limiting words. If the number of iterations is even, the 0-word evolves from 0 -> 11 -> 01110111 -> 1101110111011101011101110111; if the number of iterations is odd, the 1-word evolves from 0 -> 11 -> 01110111, as in A285599.
LINKS
MATHEMATICA
s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {0, 1, 1, 1}}] &, {0}, 11] (* A285599 *)
Flatten[Position[s, 0]] (* A285600 *)
Flatten[Position[s, 1]] (* A285601 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, May 01 2017
STATUS
approved