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Squares composed of digits {4,6,7}.
2

%I #15 Aug 11 2024 14:41:32

%S 4,64,676,7744,4444667464644,66667767777644764644,

%T 767646664777467676766464,6446477674444767467664676,

%U 7446477664767776477464446664464,64446474444746646444646744666444644

%N Squares composed of digits {4,6,7}.

%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="https://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_, May 07 2009]

%Y Cf. A053956.

%K nonn,base

%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 website added by _Max Alekseyev_, May 07 2009