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Search: id:A023995
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| A023995 |
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Number of sets S = {a_1, a_2, ..., a_k}, with 1 < a_i < a_j <= n such that no a_j divides the product of all the others. |
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3
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| 1, 2, 4, 6, 12, 16, 32, 44, 64, 86, 172, 204, 408, 544, 660, 860, 1720, 2080, 4160, 4800, 5792, 7784, 15568, 17440, 23648, 31616, 40976, 46584, 93168, 102768, 205536, 261600
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