Erratum to "A lattice walk approach to the q-counting of multiset permutations" by D. Zeilberger

in the atricle A lattice walk approach to the q-counting of multiset permutations by D. Zeilberger, on p.198 the bottm formula, inside the sigma there is a missing

p^{(n-k)(n-k-1)/2}

that should multiply the summand.

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