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Omni-MATH / We call a positive integer t good if there is a sequence a₀,a₁,… of positive integers satisfying a₀=15,a₁=t, and a_(n−1)a_(n+1)=(a_(n)−1)(a_(n)+1) for all positive integers n. Find… · Discussion

Discussing We call a positive integer t good if there is a sequence a₀,a₁,… of positive integers satisfying a₀=15,a₁=t, and a_(n−1)a_(n+1)=(a_(n)−1)(a_(n)+1) for all positive integers n. Find… · Omni-MATH

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