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Search: id:A102146
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| A102146 |
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Sigma(10^n - 1), where sigma(n) is the sum of positive divisors of n. |
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| 13, 156, 1520, 15912, 148512, 2042880, 14508000, 162493344, 1534205464, 16203253248, 144451398000, 2063316971520, 14903272088640, 158269280832000, 1614847741624320, 17205180696931968, 144444514193267496
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