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A049468
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Replace each fraction p/q in Farey tree A007305/A007306 by p+2q.
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1
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2, 3, 5, 7, 8, 9, 12, 13, 11, 11, 16, 19, 17, 18, 21, 19, 14, 13, 20, 25, 23, 26, 31, 29, 22, 23, 31, 34, 29, 27, 30, 25, 17, 15, 24, 31, 29, 34, 41, 39, 30, 33, 45, 50, 43, 41, 46, 39, 27, 28, 41, 49, 44, 47, 55, 50, 37, 35, 46, 49, 41, 36, 39, 31, 20, 17, 28, 37
(list; graph; refs; listen; history; internal format)
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