%I A058440
%S A058440 4,7744,407044,4044074004774077447400004400704
%N A058440 Squares composed of digits {0,4,7}, not ending with zero.
%H A058440 P. De Geest, <a href="http://www.worldofnumbers.com/threedigits.htm">
               Index to related sequences</a>
%H A058440 Hisanori Mishima, <a href="http://www.asahi-net.or.jp/~KC2H-MSM/mathland/
               math02/math0210.htm#047">Sporadic tridigital solutions</a>
%Y A058440 Cf. A058439.
%Y A058440 Sequence in context: A079232 A137045 A077258 this_sequence A058464 A053951 
               A058460
%Y A058440 Adjacent sequences: A058437 A058438 A058439 this_sequence A058441 A058442 
               A058443
%K A058440 nonn,base,hard,more
%O A058440 1,1
%A A058440 Patrick De Geest (pdg(AT)worldofnumbers.com), Nov 15 2000.