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A039607
Numbers whose base-12 representation has the same nonzero number of 1's and 5's.
0
17, 61, 149, 173, 185, 197, 204, 206, 207, 208, 210, 211, 212, 213, 214, 215, 221, 233, 245, 257, 269, 281, 305, 349, 449, 493, 593, 637, 721, 732, 734, 735, 736, 738, 739, 740, 741, 742, 743, 745, 757, 769, 793, 805, 817, 829, 841, 853, 881, 925, 1025
OFFSET
1,1
MATHEMATICA
Select[Range[1500], DigitCount[#, 12, 1]== DigitCount[#, 12, 5] >0&] (* Harvey P. Dale, Mar 13 2011 *)
CROSSREFS
Sequence in context: A141853 A139906 A117874 * A142299 A211579 A211593
KEYWORD
nonn,base,easy
STATUS
approved