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Aug 13, 2021 at 12:37 answer added Peter Taylor timeline score: 1
Aug 20, 2019 at 13:26 comment added T. Amdeberhan Yes, it does. Thanks. I look forward to a combinatorial proof.
Aug 20, 2019 at 10:54 comment added Alexey Ustinov Wilf's "Snake Oil" Method Proves an Identity in The Motzkin Triangle arxiv.org/pdf/1507.07660.pdf
Aug 20, 2019 at 2:46 history edited T. Amdeberhan CC BY-SA 4.0
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Aug 20, 2019 at 2:27 history asked T. Amdeberhan CC BY-SA 4.0