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A045037
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Numbers whose base-4 representation contains exactly four 0's and four 1's.
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1
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16405, 16453, 16465, 16468, 16645, 16657, 16660, 16705, 16708, 16720, 17413, 17425, 17428, 17473, 17476, 17488, 17665, 17668, 17680, 17728, 20485, 20497, 20500, 20545, 20548, 20560, 20737, 20740, 20752, 20800
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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Select[Range[20000], DigitCount[#, 4, 0] == 4 && DigitCount[#, 4, 1] == 4 &] (* Vincenzo Librandi, Sep 23 2016 *)
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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