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%I #7 Apr 12 2024 09:51:27
%S 1,9,81,816,959,8119,9959,81186,81619,811891,816186,816619,956619,
%T 8185169,81169669,81558666,95685169,816516186,956659119,8116968986,
%U 8118866669,8161616669,8166516186,8166816186,9566566186,9568696666,9585851866,9955811669,9995581859,81188661891,81618616866,81619966666,811696966669,811696985869
%N Numbers k such that k and k^2 use only the digits 1, 5, 6, 8 and 9.
%C Generated with DrScheme.
%H Jonathan Wellons, <a href="/A137062/b137062.txt">Table of n, a(n) for n = 1..76</a>
%H J. Wellons, <a href="https://web.archive.org/web/20090206165028/http://jonathanwellons.com/shared-digits/">Tables of Shared Digits</a> [archived]
%e 815895615681881^2 = 665685655688915661168591698161.
%K base,nonn,changed
%O 1,2
%A Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008
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