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A137016
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Numbers k such that k and k^2 use only the digits 1, 2, 6, 8 and 9.
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1
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1, 9, 11, 91, 96, 261, 911, 1291, 1619, 2986, 16989, 26291, 81619, 92896, 126969, 128891, 162161, 298161, 928881, 2861291, 16162296, 16988869, 26289291, 28616119, 29696296, 81669261, 82866881, 92888219, 129196989, 129221619, 129696296, 169298896, 261186296, 286692896, 286698661, 296981969, 298199281, 299981881, 299982161, 829619261
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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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981269161281291^2 = 962889166881688288212826626681.
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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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