Solving the recurrence aₙ₊₁=3aₙ+1 with a₁=2, we find a closed form \(a_n = \frac{5}{6}3^n - \frac{1}{2}\) and compute \(a_5=202\).
recurrence relation
closed form sequence
solve linear recurrence
compute sequence term
Closed-form solution and computation of a₅
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Output
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