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A084422 Number of subsets of integers 1 through n (including null set) containing no pair of integers that share a common factor. +0
4
1, 2, 4, 8, 12, 24, 28, 56, 72, 104, 116, 232, 248, 496, 544, 616, 728, 1456, 1520, 3040, 3232, 3616, 3872, 7744, 8000, 11168, 11904, 14656, 15488, 30976, 31232, 62464, 69888, 76160, 80256, 89856, 91648, 183296, 192640, 208640, 214272, 428544 (list; graph; listen)
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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.


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