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A157001
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Fractions x/y, with 1<=x,y<=n, that reduce to (odd)/(even).
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0
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0, 1, 2, 5, 7, 11, 14, 21, 25, 32, 37, 47, 53, 63, 70, 85, 93, 106, 115, 132, 142, 158, 169, 191, 203, 222, 235, 259, 273, 295, 310, 341, 357, 382, 399, 430, 448, 476, 495, 532, 552, 583, 604, 642, 664, 698, 721, 767, 791, 828, 853, 898, 924, 964, 991, 1043, 1071
(list; graph; refs; listen; history; internal format)
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