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A039528
Numbers whose base-12 representation has the same nonzero number of 3's and 9's.
0
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
OFFSET
1,1
MATHEMATICA
Select[Range[1500], DigitCount[#, 12, 3]==DigitCount[#, 12, 9]>0&] (* Harvey P. Dale, Jan 21 2015 *)
CROSSREFS
Sequence in context: A043442 A044232 A044613 * A228058 A351533 A074770
KEYWORD
nonn,base,easy
STATUS
approved