%I #16 Aug 11 2024 14:41:33
%S 3,283,301345331969667,299831600904572582192518303
%N Numbers k such that k^2 contains only digits {0,8,9}, not ending with zero.
%H P. De Geest, <a href="https://www.worldofnumbers.com/threedigits.htm">Index to related sequences</a>
%H Hisanori Mishima, <a href="http://www.asahi-net.or.jp/~KC2H-MSM/mathland/math02/math0210.htm#089">Sporadic tridigital solutions</a>
%Y Cf. A058456.
%K nonn,base,hard,more
%O 1,1
%A _Patrick De Geest_, Nov 15 2000
%E a(4) from _Zhao Hui Du_, Feb 28 2024