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A130044
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a(0)=1. a(n) = number of earlier terms which are coprime to the largest odd divisor of n.
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2
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1, 1, 2, 3, 4, 5, 5, 7, 8, 8, 8, 11, 11, 13, 13, 12, 16, 17, 16, 19, 18, 17, 20, 23, 21, 22, 24, 22, 26, 29, 22, 31, 32, 23, 32, 30, 30, 37, 37, 29, 35, 41, 33, 43, 38, 33, 44, 47, 39, 46, 44, 39, 47, 53, 43, 40, 53, 44, 56, 59, 44, 61, 61, 49, 64, 53, 46, 67, 66, 53
(list; graph; refs; listen; history; internal format)
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