| 1 |
| 1×3 |
| 1 |
| 3×5 |
| 1 |
| 5×7 |
| 1 |
| 2009×2011 |
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| 1 |
| 1×2 |
| 1 |
| 2 |
| 1 |
| 2×3 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 3×4 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 1×2 |
| 1 |
| 2×3 |
| 1 |
| 3×4 |
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 4 |
| 3 |
| 4 |
| 1 |
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| 1×2 |
| 1 |
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| 1 |
| 1×2 |
| 1 |
| 2×3 |
| 1 |
| 3×4 |
| 1 |
| n(n+1) |
| 1 |
| 2×4 |
| 1 |
| 4×6 |
| 1 |
| 6×8 |
| 1 |
| 2012×2014 |
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| 1 |
| 2 |
| 5 |
| 9 |
| 7 |
| 12 |
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 2 |
| 5 |
| 7 |
| 5 |
| 7 |
| 1 |
| 2 |
| 1 |
| 2 |
| 2 |
| 5 |
| 1 |
| 3 |
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| 5 |
| 8 |
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| 12 |
| 2 |
| 3 |
| 3 |
| 4 |
| 3 |
| 5 |
| 1 |
| 4 |
| 3 |
| 5 |
| 1 |
| 4 |
| 1 |
| 5 |
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