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%I #7 Apr 12 2024 09:51:27
%S 1,4,74,76,746,6454,6754,7466,64476,67466,67576,74476,74616,644574,
%T 664166,667576,675771,717466,751776,4176776,6455746,6746454,7151616,
%U 7174616,7467574,64154154,64556654,66461754,66751454,67651616,67651716,74474476,417751666,664615766,664647776,667567716,674174766,674667116,715167576,717464116
%N Numbers k such that k and k^2 use only the digits 1, 4, 5, 6 and 7.
%C Generated with DrScheme.
%H Jonathan Wellons, <a href="/A137046/b137046.txt">Table of n, a(n) for n = 1..231</a>
%H J. Wellons, <a href="https://web.archive.org/web/20090206165028/http://jonathanwellons.com/shared-digits/">Tables of Shared Digits</a> [archived]
%e 745764545654154^2 = 556164757554746745767777455716.
%K base,nonn,changed
%O 1,2
%A Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008
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