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A053916 Numbers k such that k^2 contains only digits {2,3,4}. 1


%S 2,18,482,5868,20838,208188,492162,6582038,2054834162,205483392086668

%N Numbers k such that k^2 contains only digits {2,3,4}.

%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 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 Hisanori Mishima, <a href="http://www.asahi-net.or.jp/~KC2H-MSM/mathland/math02/math0210.htm#234">Sporadic tridigital solutions</a> [From _Max Alekseyev_, Feb 06 2010]

%Y Cf. A053917.

%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 04 2005

%E One more term from Mishima's page added by _Max Alekseyev_, Feb 06 2010

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Last modified August 10 07:54 EDT 2022. Contains 356030 sequences. (Running on oeis4.)