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A059966 [sum{ d divides n } mu(n/d) (2^d - 1)]/n. +0
7
1, 1, 2, 3, 6, 9, 18, 30, 56, 99, 186, 335, 630, 1161, 2182, 4080, 7710, 14532, 27594, 52377, 99858, 190557, 364722, 698870, 1342176, 2580795, 4971008, 9586395, 18512790, 35790267, 69273666, 134215680, 260300986, 505286415, 981706806 (list; graph; listen)
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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.


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