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Answers and rating deltas for
How to find out the sum of products of all combinations of first n natural numbers taken r at a time
| Author | Votes | Δ |
|---|---|---|
| Lutz Lehmann | 2 | +2.36 |
| Robert Dodier | 1 | -2.36 |
Last visited: May 4, 2016, 10:15:38 AM