%I A030174
%S A030174 1,121,12321,1322122321,132233322321,213223221121,13223121322321,
%T A030174 1212111311221321,131332121232312121,31121322221111133211321,
%U A030174 3322133322121313132333322321,12232213113321121113332133323121
%N A030174 Squares composed of digits {1,2,3}.
%H A030174 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               SquareNumber.html">Link to a section of The World of Mathematics.</
               a>
%H A030174 P. De Geest, <a href="http://www.worldofnumbers.com/threedigits.htm">
               Squares containing at most three distinct digits, Index entries for 
               related sequences</a>
%H A030174 Author?, <a href="http://blue.kakiko.com/mmrmmr/htm/eqtn06.html">Source</
               a>(<a href="http://blue.kakiko.com/mmrmmr/txt/eqtn06.txt">txt</a>
               )
%H A030174 Hisanori Mishima, <a href="http://www.asahi-net.or.jp/~KC2H-MSM/mathland/
               math02/math0210.htm">Sporadic tridigital solutions</a>
%Y A030174 Cf. A030175.
%Y A030174 Sequence in context: A002477 A068117 A080162 this_sequence A066625 A078277 
               A050740
%Y A030174 Adjacent sequences: A030171 A030172 A030173 this_sequence A030175 A030176 
               A030177
%K A030174 nonn,base
%O A030174 1,2
%A A030174 Patrick De Geest (pdg(AT)worldofnumbers.com)
%E A030174 More terms from the author, Mar 15, 2000.
%E A030174 More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 14 2005