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A137092
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Numbers k such that k and k^2 use only the digits 2, 3, 7, 8 and 9.
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1
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3, 27, 2973, 2983, 88223, 88277, 298327, 299833, 993923, 2978923, 9893323, 9939277, 27978277, 28773233, 28798233, 28978923, 29729327, 29828223, 29983327, 29998333, 88283233, 93989323, 98887733, 98893323, 287989233, 289799827, 297293327, 298978223, 887299233, 893293277, 989339827, 989893923, 2787979327, 2827328923
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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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893797389732927^2 = 798873773893393799392387987329.
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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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