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A136873
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Numbers k such that k and k^2 use only the digits 0, 1, 5, 7 and 9.
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1
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0, 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000, 100000000, 1000000000, 9777075001, 10000000000, 97770750010, 100000000000, 717997055001, 959050150501, 977707500100, 1000000000000, 7179970550010, 7550970170501, 9590501505010, 9777075001000, 10000000000000, 71799705500100, 75509701705010
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OFFSET
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1,3
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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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7550970170501^2 = 57017150515795901010591001.
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CROSSREFS
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KEYWORD
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base,nonn,changed
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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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