%I A030175
%S A030175 1,11,111,36361,363639,461761,3636361,34815389,362397739,176412364139,
%T A030175 57637950363639,3497458093147239,56843832676142723489,
%U A030175 557963558954625926861
%N A030175 When squared gives number composed of digits {1,2,3}.
%H A030175 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 A030175 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 A030175 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 A030175 Hisanori Mishima, <a href="http://www.asahi-net.or.jp/~KC2H-MSM/mathland/
               math02/math0210.htm">Sporadic tridigital solutions</a>
%t A030175 Do[ If[ Union[ Join[{1, 2, 3}, IntegerDigits[n^2] ] ] == {1, 2, 3}, Print[n] 
               ], {n, 0, 10^9}]
%Y A030175 Cf. A030174.
%Y A030175 Sequence in context: A131293 A108047 A144784 this_sequence A058949 A075842 
               A037535
%Y A030175 Adjacent sequences: A030172 A030173 A030174 this_sequence A030176 A030177 
               A030178
%K A030175 nonn,base
%O A030175 0,2
%A A030175 Patrick De Geest (pdg(AT)worldofnumbers.com)
%E A030175 More terms from author 03/2000.
%E A030175 More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 14 2005