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%I
%S 0,1,2,0,2,0,0,1,2,0,0,1,0,1,2,0,2,0,0,1,0,1,2,0,0,1,2,0,2,0,0,1,2,0,
%T 0,1,0,1,2,0,0,1,2,0,2,0,0,1,0,1,2,0,2,0,0,1,2,0,0,1,0,1,2,0,2,0,0,1,
%U 0,1,2,0,0,1,2,0,2,0,0,1,0,1,2,0,2,0,0,1,2,0,0,1,0,1,2,0,0,1,2,0,2,0,0,1,2
%N Fixed point of morphism 0 -> 01, 1 -> 20, 2 -> 20.
%t Nest[ Function[ l, {Flatten[(l /. {0 -> {0, 1}, 1 -> {2, 0}, 2 -> {2, 0}})]}], {0}, 7] (from Robert G. Wilson v Feb 28 2005)
%K nonn,easy
%O 0,3
%A Ralf Stephan, Dec 11 2004
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