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A228804
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Numbers which are not a denominator of a rational number having a continued fraction consisting entirely of 1s and 2s; complement of A228803.
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2
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6, 9, 14, 16, 20, 22, 23, 28, 32, 33, 35, 36, 38, 39, 42, 48, 51, 52, 53, 54, 57, 59, 60, 62, 66, 72, 77, 78, 82, 83, 84, 85, 86, 87, 88, 90, 92, 94, 95, 96, 102, 103, 107, 110, 113, 114, 118, 120, 122, 124, 125, 126, 127, 130, 132, 133, 134, 135, 136, 139
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OFFSET
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1,1
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COMMENTS
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LINKS
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MATHEMATICA
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t = Sort[Union[Denominator[Map[FromContinuedFraction, Flatten[Map[Tuples[{1, 2}, #] &, Range[15]], 1]]]]]; c = Complement[Range[200], t]
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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