If I create a random lattice path from $(0,0)$ to $(n,k)$, taking only north or east steps $(1,0)$ or $(0,1)$, with equal probability, the so called staircase walk, what are the moments of the area under the walk, that is between the walk and the $x$-axis?
2026-04-04 02:13:38.1775268818
Area under staircase walk
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