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A285205
0-limiting word of the morphism 0->10, 1-> 0100.
6
0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0
OFFSET
1
COMMENTS
The morphism 0->10, 1-> 0100 has two limiting words. If the number of iterations is even, the 0-word evolves from 0 -> 10 -> 0100 -> 1001001010 -> 0100101001001010010010010010; if the number of iterations is odd, the 1-word evolves from 0 -> 10 -> 0100 -> 1001001010, as in A285208.
LINKS
MATHEMATICA
s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {0, 1, 0, 0}}] &, {0}, 12]; (* A285205 *)
Flatten[Position[s, 0]]; (* A285206 *)
Flatten[Position[s, 1]]; (* A285207 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Apr 21 2017
STATUS
approved