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%I #16 Oct 18 2019 21:27:20
%S 2,6,8,58,2108,665908,682908,6583794,6814942,58622892,183475738,
%T 79651953188,666585663238,2081740457806,66817996351009092,
%U 6666680833328031344
%N Numbers k such that k^2 contains only digits {3,4,6}.
%H 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 Author?, <a href="http://web.archive.org/web/20080708203024/http://blue.kakiko.com/mmrmmr/htm/eqtn06.html">Source</a> (<a href="http://web.archive.org/web/20060426155831/http://blue.kakiko.com/mmrmmr/txt/eqtn06.txt">txt</a>)
%H Hisanori Mishima, <a href="http://www.asahi-net.or.jp/~KC2H-MSM/mathland/math02/math0210.htm#346">Sporadic tridigital solutions</a>
%Y Cf. A053939.
%K nonn,base,more
%O 1,1
%A _Patrick De Geest_, Mar 15 2000
%E More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 03 2005
%E One more term from _Jon E. Schoenfield_, Sep 04 2006
%E a(15)-a(16) from Mishima's website, added by _Max Alekseyev_, Nov 30 2017
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