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A124655 a(n) = n-th integer from among those positive integers k where every positive integers <= k and coprime to k is also coprime to n. +0
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1, 2, 3, 6, 5, 24, 7, 14, 21, 70, 11, 60, 13, 140, 180, 30, 17, 96, 19, 170, 357, 352, 23, 132, 105, 494, 75, 336, 29, 840, 31, 62, 924, 850, 1050, 204, 37, 1064, 1287, 370, 41, 1638, 43, 836, 630, 1564, 47, 276, 301, 470, 2244, 1170, 53, 312, 2695, 728, 2793 (list; graph; listen)
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Last modified December 1 19:22 EST 2009. Contains 167811 sequences.


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