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%I #9 Oct 18 2019 21:47:20
%S 1,4,26,131,276,881,3431,81346,81619,129119,132954,1292931424
%N Numbers k such that k^2 contains only digits {1,6,7}.
%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>
%Y Cf. A053907.
%K nonn,base,more
%O 1,2
%A _Patrick De Geest_, Mar 15 2000
%E More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 04 2005
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