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Search: id:A076231
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| A076231 |
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Numbers n such that Sigma[1,n]/n, Sigma[3,n]/n and Sigma[5,n]/n are integers. |
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3
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| 1, 6, 120, 672, 8128, 30240, 32760, 33550336, 459818240, 1379454720, 1476304896, 8589869056, 31998395520, 51001180160, 66433720320
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