Timeline for Proving $\sum_{k=m}^n \binom{k}{m} {n\brack k} = \sum_{k=m}^n \frac{n!}{k!} {k\brack m} $
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 12, 2023 at 1:08 | history | edited | Marko Riedel | CC BY-SA 4.0 |
ac notation
|
| Feb 13, 2017 at 1:01 | comment | added | Marko Riedel | Thank you. Both the OGF and the EGF have their respective advantages, here it was the EGF that worked best. | |
| Feb 13, 2017 at 0:58 | comment | added | David Holden | thanks, great answer. has helped me to understand more about exponential generating functions. | |
| Feb 13, 2017 at 0:51 | vote | accept | David Holden | ||
| Feb 12, 2017 at 22:13 | history | answered | Marko Riedel | CC BY-SA 3.0 |