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A285467
1-limiting word of the morphism 0->11, 1-> 0001.
6
1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1
OFFSET
1
COMMENTS
The morphism 0->11, 1-> 0001 has two limiting words. If the number of iterations is even, the 0-word evolves from 0 -> 11 -> 00010001 -> 11111100011111110001 -> 00010000001... ; if the number of iterations is odd, the 1-word evolves from 0 -> 11 -> 00010001 -> 11111100011111110001, as in A285467.
LINKS
MATHEMATICA
s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {0, 0, 0, 1}}] &, {0}, 11] (* A285467 *)
Flatten[Position[s, 0]] (* A285468 *)
Flatten[Position[s, 1]] (* A285469 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Apr 29 2017
STATUS
approved