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A039528
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Numbers whose base-12 representation has the same nonzero number of 3's and 9's.
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0
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45, 111, 189, 255, 333, 399, 441, 453, 465, 489, 501, 513, 525, 537, 540, 541, 542, 544, 545, 546, 547, 548, 550, 551, 561, 573, 621, 687, 765, 831, 909, 975, 1053, 1119, 1197, 1263, 1299, 1311, 1323, 1332, 1333, 1334, 1336, 1337, 1338, 1339
(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[1500], DigitCount[#, 12, 3]==DigitCount[#, 12, 9]>0&] (* Harvey P. Dale, Jan 21 2015 *)
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CROSSREFS
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KEYWORD
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nonn,base,easy
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AUTHOR
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STATUS
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approved
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