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A039607 Numbers n such that representation in base 12 has 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 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

MATHEMATICA

Select[Range[1500], DigitCount[#, 12, 1]== DigitCount[#, 12, 5] >0&]  (* From Harvey P. Dale, Mar 13 2011 *)

CROSSREFS

Sequence in context: A141853 A139906 A117874 * A142299 A195025 A010005

Adjacent sequences:  A039604 A039605 A039606 * A039608 A039609 A039610

KEYWORD

nonn,base,easy

AUTHOR

Olivier Gerard (olivier.gerard(AT)gmail.com)

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Last modified February 17 08:21 EST 2012. Contains 205998 sequences.