Timeline for Reference request : an elementary product-sum formula for binomial coefficients
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 10, 2012 at 17:31 | answer | added | Ira Gessel | timeline score: 2 | |
| May 10, 2012 at 0:30 | vote | accept | Kyungyong Lee | ||
| May 10, 2012 at 0:22 | answer | added | Qiaochu Yuan | timeline score: 8 | |
| May 10, 2012 at 0:01 | history | asked | Kyungyong Lee | CC BY-SA 3.0 |