Timeline for Combinatorial identities
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
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| Apr 13, 2017 at 12:58 | history | edited | CommunityBot |
replaced http://mathoverflow.net/ with https://mathoverflow.net/
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| Nov 27, 2013 at 22:18 | comment | added | Mark Wildon | Thanks! I should have mentioned that the identity I used is (1.40) in Gould's tables: math.wvu.edu/~gould/Vol.4.PDF. The identity is equivalent to your form of Kummer's theorem (put $x=2a+1$), and in fact the proof also carries over (evaluate at $a=0,1,\ldots,n$). | |
| Nov 27, 2013 at 22:11 | comment | added | Shahrooz | I just came back again for one up vote to this nice answer. | |
| Nov 27, 2013 at 21:15 | comment | added | Ira Gessel | Very nice proof! | |
| Nov 27, 2013 at 20:41 | history | edited | Mark Wildon | CC BY-SA 3.0 |
Corrected missing sign
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| Nov 27, 2013 at 20:30 | history | answered | Mark Wildon | CC BY-SA 3.0 |