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A136838
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Numbers k such that k and k^2 use only the digits 0, 1, 3, 4 and 6.
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1
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0, 1, 4, 6, 10, 40, 60, 100, 400, 600, 1000, 1146, 4000, 6000, 10000, 10301, 11460, 33631, 40000, 60000, 100000, 103010, 103131, 114600, 336310, 400000, 404306, 600000, 601344, 603444, 660306, 663631, 1000000, 1003001, 1030100, 1031310, 1146000, 1160306, 3336631, 3363100, 3363646, 4000000, 4014304, 4043060, 6000000, 6013440, 6034440
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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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643164144134306^2 = 413660116300014343066166101636.
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MATHEMATICA
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Select[FromDigits/@Tuples[{0, 1, 3, 4, 6}, 7], SubsetQ[{0, 1, 3, 4, 6}, IntegerDigits[ #^2]]&] (* Harvey P. Dale, Aug 14 2017 *)
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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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