%I A038113
%S A038113 1,2,11,12,21,101,1001,1002,1011,10001,10002,10011,10012,10021,10101,
%T A038113 11001,11002,100001,100002,100011,100012,100021,100101,101001,101002,
%U A038113 101011,110001,110002,110011,110012,110021,110101,111001,111002,200001
%N A038113 Lexicographically first strictly increasing base 4 autovarious sequence: 
               a(n) = number of distinct a(k) mod 4^n (written in base 4).
%C A038113 The first a(n) elements include all a(n) residues mod 4^n.
%Y A038113 Sequence in context: A136999 A053880 A063112 this_sequence A089600 A114034 
               A136970
%Y A038113 Adjacent sequences: A038110 A038111 A038112 this_sequence A038114 A038115 
               A038116
%K A038113 nonn,base
%O A038113 0,2
%A A038113 David W. Wilson (davidwwilson(AT)comcast.net)