%I A053910
%S A053910 1,3,4,13,14,31,263,264,3114,4119,24737,81619,834386,1382737,9959514,
%T A053910 10775719,341608987,836460469,998053937,24737858031,40201507014,
%U A053910 99599046013,2488372283063,8361615872313
%N A053910 Numbers n such that n^2 contains only digits {1,6,9}.
%H A053910 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 A053910 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 A053910 Cf. A053911.
%Y A053910 Sequence in context: A138101 A095790 A109474 this_sequence A105074 A087884 
               A057570
%Y A053910 Adjacent sequences: A053907 A053908 A053909 this_sequence A053911 A053912 
               A053913
%K A053910 nonn,base,more
%O A053910 1,2
%A A053910 Patrick De Geest (pdg(AT)worldofnumbers.com), Mar 15 2000.
%E A053910 More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 04 2005
%E A053910 Two more terms from Jon E. Schoenfield (jonscho(AT)hiwaay.net), Sep 03 
               2006