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%I #7 Apr 12 2024 09:51:27
%S 2,5,235,2335,7235,23335,72335,233335,477235,2333335,2354235,23333335,
%T 47354235,233333335,235744235,273372335,274477235,473732335,723432335,
%U 2333333335,2333524235,2733723335,4747354235,7372744235,23333333335,23333524235,27472254235,52224777235,57223732335,72334323335,233333333335,273372342335
%N Numbers k such that k and k^2 use only the digits 2, 3, 4, 5 and 7.
%C Generated with DrScheme.
%H Jonathan Wellons, <a href="/A137068/b137068.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 52323727254235^2 = 2737772433775574532325435225.
%K base,nonn
%O 1,1
%A Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008