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A137127
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Numbers k such that k and k^2 use only the digits 3, 4, 6, 7 and 8.
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1
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6, 8, 88, 688, 874, 876, 8874, 8876, 68474, 86478, 88678, 683874, 683876, 6688374, 6883876, 87663474, 666834678, 668383478, 683847844, 684388374, 887348678, 6887436878, 8646643474, 8767376374, 66684883478, 66846374378, 68466373844, 87377836878, 87446363374, 668478484878, 683643676438, 684388368376, 684663763374
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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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684648643383478^2 = 468743764886836833787763376484.
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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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