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%I #11 Jun 07 2018 16:27:01
%S 0,1,2,1,0,1,2,1,1,2,1,0,1,2,1,2,1,0,1,2,1,1,2,1,0,1,2,1,0,1,2,1,1,2,
%T 1,0,1,2,1,2,1,0,1,2,1,1,2,1,0,1,2,1,1,2,1,0,1,2,1,2,1,0,1,2,1,1,2,1,
%U 0,1,2,1,0,1,2,1,1,2,1,0,1,2,1,2,1,0,1,2,1,1,2,1,0,1,2,1,2,1,0,1
%N Trajectory of 0 under repeated applications of the map psi: 0 -> 0121, 1 -> 0121121, 2 -> 012121.
%C This is A275925 rewritten in a more canonical form using the alphabet 0,1,2.
%Y Cf. A275925, A276788.
%K nonn
%O 0,3
%A _N. J. A. Sloane_, Oct 14 2016
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