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%I #6 Apr 04 2015 21:46:56
%S 1,2,11,12,21,101,1001,1002,1011,10001,10002,10011,10012,10021,10101,
%T 11001,11002,100001,100002,100011,100012,100021,100101,101001,101002,
%U 101011,110001,110002,110011,110012,110021,110101,111001,111002,200001
%N Lexicographically earliest strictly increasing base 4 autovarious sequence: a(n) = number of distinct a(k) mod 4^n (written in base 4).
%C The first a(n) elements include all a(n) residues mod 4^n.
%K nonn,base
%O 0,2
%A _David W. Wilson_
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