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%I #5 Apr 12 2024 09:51:26
%S 0,1,3,10,30,100,300,1000,3000,10000,30000,100000,300000,1000000,
%T 3000000,10000000,30000000,100000000,300000000,1000000000,3000000000,
%U 10000000000,30000000000,100000000000,300000000000,1000000000000,3000000000000,10000000000000,30000000000000,100000000000000,300000000000000
%N Numbers k such that k and k^2 use only the digits 0, 1, 3 and 9.
%C Generated with DrScheme.
%H J. Wellons, <a href="https://web.archive.org/web/20090206165028/http://jonathanwellons.com/shared-digits/">Tables of Shared Digits</a> [archived]
%e 300000000000000^2 = 90000000000000000000000000000.
%K base,nonn,changed
%O 1,3
%A Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008
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