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A136858
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Numbers k such that k and k^2 use only the digits 0, 1, 4, 5 and 9.
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1
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0, 1, 10, 100, 951, 1000, 1049, 9510, 10000, 10490, 95100, 99499, 99501, 100000, 100499, 100501, 100549, 100951, 104451, 104900, 105549, 951000, 951549, 994990, 995010, 1000000, 1004990, 1005010, 1005490, 1009510, 1044510, 1049000, 1055490, 9510000, 9515490, 9949900, 9950100, 9994999, 9995001, 10000000, 10004999, 10005001, 10005951
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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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109501594095951^2 = 11990599109554410900994594401.
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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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