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A045103
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Numbers whose base-4 representation contains exactly three 1's and three 2's.
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0
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1386, 1434, 1446, 1449, 1626, 1638, 1641, 1686, 1689, 1701, 2394, 2406, 2409, 2454, 2457, 2469, 2646, 2649, 2661, 2709, 4458, 4506, 4518, 4521, 4698, 4710, 4713, 4758, 4761, 4773, 5226, 5274, 5286, 5289, 5418, 5514
(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[6000], DigitCount[#, 4, 1]==DigitCount[#, 4, 2]==3&] (* Harvey P. Dale, Sep 10 2011 *)
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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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