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%I #11 Mar 11 2024 05:52:24
%S 1,9,16,169,196,961,69169,69696,9696996,16966161,611919169,6661661161,
%T 696199996996,1911961611169,99191919116196,116116119966961,
%U 116696699999166169,699666116199699961,996111661161199969
%N Squares composed of digits {1,6,9}.
%H Zhao Hui Du, <a href="/A053911/b053911.txt">Table of n, a(n) for n = 1..31</a>
%H Patrick 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. A053910.
%K nonn,base
%O 1,2
%A _Patrick De Geest_, Mar 15 2000