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A056891
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a(n) = (s(n)-(n%2)) / n where s(n) is sequence A006533
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0
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0, 1, 1, 2, 3, 5, 8, 11, 18, 23, 35, 38, 61, 69, 98, 107, 148, 138, 213, 226, 295, 311, 396, 377, 518, 539, 663, 686, 833, 717, 1030, 1059
(list; graph; refs; listen; history; internal format)
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