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A136951
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Numbers k such that k and k^2 use only the digits 0, 4, 5, 7 and 8.
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1
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0, 88, 878, 880, 888, 7588, 8780, 8800, 8880, 74078, 75878, 75880, 87800, 88000, 88800, 740578, 740588, 740780, 755478, 758780, 758800, 840088, 878000, 880000, 880088, 888000, 7405780, 7405880, 7407800, 7554780, 7587800, 7588000, 8400880, 8705088, 8780000, 8800000, 8800448, 8800880, 8880000, 74057800, 74058800, 74078000, 74487888
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OFFSET
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1,2
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COMMENTS
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Generated with DrScheme.
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LINKS
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EXAMPLE
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870504454040578^2 = 757778004504484775470470574084.
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008
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STATUS
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approved
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