Timeline for Absolute sum of coefficient of (1-x)^b (1+x)^{(n-b)}
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 28, 2012 at 22:04 | vote | accept | user29295 | ||
| Nov 28, 2012 at 22:04 | vote | accept | user29295 | ||
| Nov 28, 2012 at 22:04 | |||||
| Nov 22, 2012 at 16:32 | comment | added | user29295 | @Stanley: Thank you very much. For $b\leq n/3$, I have tried similar approach but do not get anything better than $2^{n-b}$. | |
| Nov 22, 2012 at 3:44 | history | answered | Richard Stanley | CC BY-SA 3.0 |