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%I #8 Apr 12 2024 09:51:27
%S 1,2,3,11,12,21,111,139,212,339,1111,1193,4943,11132,12212,14139,
%T 14943,21193,43923,49229,119132,122193,141111,149139,221911,439229,
%U 492239,499423,1192193,1221193,1393239,2222911,2234143,3491911,4911123,4913443,4929423,4944132,11132921,11929423,12214423,14122143,14912911,14914132,21194132
%N Numbers k such that k and k^2 use only the digits 1, 2, 3, 4 and 9.
%C Generated with DrScheme.
%H Jonathan Wellons, <a href="/A136972/b136972.txt">Table of n, a(n) for n = 1..451</a>
%H J. Wellons, <a href="https://web.archive.org/web/20090206165028/http://jonathanwellons.com/shared-digits/">Tables of Shared Digits</a> [archived]
%e 493912149214943^2 = 243949211142124119131214493249.
%K base,nonn,changed
%O 1,2
%A Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008
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