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A137125
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Numbers k such that k and k^2 use only the digits 3, 4, 5, 7 and 9.
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1
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3, 7, 595357, 7344357, 59455357, 99739357, 577373357, 733344357, 5995394357, 74393373357, 75733344357, 599947779357, 7333334394357, 7574599379357, 7745953359357, 59999477779357, 73454473995357, 74397577779357, 77455454775357, 97945797939357, 594537934344357, 595377993995357, 595435957595357, 734543775373357
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OFFSET
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1,1
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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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595435957595357^2 = 354543979597499779457747957449.
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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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