Search: id:A031154
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%I A031154
%S A031154 2,5,15,65,235,665,2132,2335,6515,6665,23335,47162,66515,66665,67485,
%T A031154 233335,235065,666515,666665,2333335,6666515,6666665,23333335,64980962,
%U A031154 66666515,66666665,233333335,666666515,666666665,2333333335,5044357665
%N A031154 Numbers n such that n^2 contains only digits {2,4,5}.
%H A031154 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 A031154 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>
               )
%Y A031154 Cf. A031152.
%Y A031154 Sequence in context: A130756 A078793 A166355 this_sequence A090091 A158079 
               A090130
%Y A031154 Adjacent sequences: A031151 A031152 A031153 this_sequence A031155 A031156 
               A031157
%K A031154 nonn,base
%O A031154 1,1
%A A031154 Patrick De Geest (pdg(AT)worldofnumbers.com)
%E A031154 Extended and corrected by author Mar 15 2000.
%E A031154 More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 03 2005

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