%I A053889
%S A053889 1,9,121,29929,9991921,1212919929,1929229929,1991212129,2929299129,
%T A053889 1229129212921,92222199291121,219992999929921,99221129991291219129,
%U A053889 2291192212129911919221121
%N A053889 Squares composed of digits {1,2,9}.
%H A053889 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 A053889 P. De Geest, <a href="http://www.worldofnumbers.com/threedigits.htm">
               Squares containing at most three distinct digits, Index entries for 
               related sequences</a>
%Y A053889 Cf. A053888.
%Y A053889 Sequence in context: A050353 A112941 A045976 this_sequence A087584 A138438 
               A085528
%Y A053889 Adjacent sequences: A053886 A053887 A053888 this_sequence A053890 A053891 
               A053892
%K A053889 nonn,base,more
%O A053889 1,2
%A A053889 Patrick De Geest (pdg(AT)worldofnumbers.com), Mar 15 2000.
%E A053889 More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 04 2005
%E A053889 One more term from Jon E. Schoenfield (jonscho(AT)hiwaay.net), Sep 03 
               2006