about 1 month ago
Solved the recurrence aₙ₊₁ = 3aₙ + 1 with a₁=2, derived closed form aₙ = (5·3ⁿ⁻¹ – 1)/2, and found a₅=202.
linear recurrence relation
closed form expression
particular solution
sequence computation
Closed-Form and Value of Recurrence Sequence
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Input
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Output
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