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arxiv: 1602.02085 · v1 · pith:GTDV7AGGnew · submitted 2016-02-05 · 🧮 math.CO

A short conceptual proof of Narayana's path-counting formula

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keywords formulalatticenarayanapathsconceptualconsequencededucediagram
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We deduce Narayana's formula for the number of lattice paths that fit in a Young diagram as a direct consequence of the Gessel-Viennot theorem on non-intersecting lattice paths.

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