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%I #7 Apr 12 2024 09:51:27
%S 2,6,26,474,4762,272442,273376,2732632,2764674,27264326,27337662,
%T 47374332,2724422442,2724642442,2763643326,4727236262,4737376662,
%U 4737746644,4772247662,4772446262,27247472662,27326246426,47246633344,47362667432,47377466632,47673344474,272463477632,272623776426,273363264674,276337233762
%N Numbers k such that k and k^2 use only the digits 2, 3, 4, 6 and 7.
%C Generated with DrScheme.
%H Jonathan Wellons, <a href="/A137071/b137071.txt">Table of n, a(n) for n = 1..63</a>
%H J. Wellons, <a href="https://web.archive.org/web/20090206165028/http://jonathanwellons.com/shared-digits/">Tables of Shared Digits</a> [archived]
%e 473737632374332^2 = 224427344327637734663772446224.
%K base,nonn
%O 1,1
%A Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008
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