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A136930
Numbers k such that k and k^2 use only the digits 0, 3, 4, 6 and 7.
1
0, 6, 60, 600, 6000, 60000, 66076, 600000, 660760, 6000000, 6607600, 60000000, 60003706, 60036706, 66036076, 66066376, 66076000, 600000000, 600037060, 600306344, 600367060, 600373006, 606336074, 660360760, 660663760, 660760000, 660760474, 6000000000, 6000036706, 6000370600, 6000637006, 6003063440, 6003670600, 6003730060
OFFSET
1,2
COMMENTS
Generated with DrScheme.
See also A058429-A058430. - M. F. Hasler, Jan 24 2008
LINKS
J. Wellons, Tables of Shared Digits [archived]
EXAMPLE
660760703770306^2 = 436604707647030077763607333636.
CROSSREFS
Sequence in context: A136943 A179200 A136938 * A136936 A136893 A090019
KEYWORD
base,nonn
AUTHOR
Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008
STATUS
approved