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%I
%S 1,5,11,15
%N Numbers k such that k and k^2 use only the digits 1, 2 and 5.
%C Sequence terminates.
%C Generated with DrScheme.
%C Numbers appearing in A131082; subsequence of A031153, A137003. - _M. F. Hasler_, Jan 24 2008
%H J. Wellons, <a href="http://jonathanwellons.com/shared-digits/">Tables of Shared Digits</a>
%e 15^2 = 225.
%K base,fini,nonn
%O 1,2
%A Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008
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