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A053920 Numbers k such that k^2 contains only digits {2,3,9}. 1

%I #13 Oct 18 2019 21:50:24

%S 3,173,577,1823,4827,3036823,6271677,96032923,179721989173,

%T 184207283323,5415158292177,1814641285211195673,14940646884386874573

%N Numbers k such that k^2 contains only digits {2,3,9}.

%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 H. Mishima <a href="http://www.asahi-net.or.jp/~KC2H-MSM/mathland/math02/math0210.htm">Squares consisted of 3 different digits</a> [From _Max Alekseyev_, Mar 12 2009]

%Y Cf. A053921.

%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 _Jon E. Schoenfield_, Sep 04 2006

%E Two more terms from Mishima's page added by _Max Alekseyev_, Mar 12 2009

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Last modified April 19 12:14 EDT 2024. Contains 371792 sequences. (Running on oeis4.)