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%I #7 Apr 12 2024 09:51:26
%S 0,1,10,11,27,100,101,110,270,1000,1001,1010,1011,1100,1101,1127,2700,
%T 2777,10000,10001,10010,10011,10100,10110,11000,11001,11010,11270,
%U 11277,27000,27770,100000,100001,100010,100011,100100,100101,100110,101000,101001,101100,110000,110001,110010,110100,112700,112770,270000,277700,1000000,1000001
%N Numbers k such that k and k^2 use only the digits 0, 1, 2, 7 and 9.
%C Generated with DrScheme.
%H Jonathan Wellons, <a href="/A136833/b136833.txt">Table of n, a(n) for n = 1..1104</a>
%H J. Wellons, <a href="https://web.archive.org/web/20090206165028/http://jonathanwellons.com/shared-digits/">Tables of Shared Digits</a> [archived]
%e 27017997921797^2 = 729972211702227010927709209.
%K base,nonn,changed
%O 1,3
%A Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008
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