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Search: id:A127941
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| A127941 |
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a(n) = numerator of b(n), where b(1)=1, b(n) = sum{1<=k<n,GCD(k,n)=1} 1/b(k). |
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2
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| 1, 1, 2, 3, 19, 25, 12091, 942579, 802405765442, 9728923151534907, 40387361143971542769608346059516047956596, 16013133965687337121814734147004294320263129575
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