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when toggle format what by license comment
Apr 2, 2018 at 18:24 comment added Max Alekseyev @IosifPinelis: Yes, one can be easily obtained from the other.
Apr 2, 2018 at 17:45 comment added Iosif Pinelis Isn't your identity equivalent to the hockey-stick identity (without loss of generality you can take $n=k$ in your 2nd displayed identity)?
Apr 2, 2018 at 13:30 history answered Max Alekseyev CC BY-SA 3.0