A136930 - OEIS

%I #7 Apr 12 2024 09:51:26

%S 0,6,60,600,6000,60000,66076,600000,660760,6000000,6607600,60000000,

%T 60003706,60036706,66036076,66066376,66076000,600000000,600037060,

%U 600306344,600367060,600373006,606336074,660360760,660663760,660760000,660760474,6000000000,6000036706,6000370600,6000637006,6003063440,6003670600,6003730060

%N Numbers k such that k and k^2 use only the digits 0, 3, 4, 6 and 7.

%C Generated with DrScheme.

%C See also A058429-A058430. - _M. F. Hasler_, Jan 24 2008

%H Jonathan Wellons, <a href="/A136930/b136930.txt">Table of n, a(n) for n = 1..181</a>

%H J. Wellons, <a href="https://web.archive.org/web/20090206165028/http://jonathanwellons.com/shared-digits/">Tables of Shared Digits</a> [archived]

%e 660760703770306^2 = 436604707647030077763607333636.

%K base,nonn

%O 1,2

%A Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008