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A039084
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Numbers n such that representation in base 9 has same number of 1's and 2's.
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0
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0, 3, 4, 5, 6, 7, 8, 11, 19, 27, 30, 31, 32, 33, 34, 35, 36, 39, 40, 41, 42, 43, 44, 45, 48, 49, 50, 51, 52, 53, 54, 57, 58, 59, 60, 61, 62, 63, 66, 67, 68, 69, 70, 71, 72, 75, 76, 77, 78, 79, 80, 83, 99, 102, 103, 104, 105, 106, 107, 110, 119, 128, 137, 146, 155, 163
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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MATHEMATICA
| Select[Range[0, 170], DigitCount[#, 9, 1]==DigitCount[#, 9, 2]&] (* From Harvey P. Dale, Mar 23 2011 *)
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CROSSREFS
| Sequence in context: A051016 A044951 A138308 * A085627 A057825 A082464
Adjacent sequences: A039081 A039082 A039083 * A039085 A039086 A039087
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KEYWORD
| nonn,base,easy
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AUTHOR
| Olivier Gerard (olivier.gerard(AT)gmail.com)
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