about 1 month ago
Derived a closed-form aₙ = (5·3ⁿ - 3)/6 for aₙ₊₁ = 3aₙ+1 with a₁=2 and found a₅ = 202 by substitution.
recurrence relation closed form
solve linear recurrence
particular solution constant
calculate sequence term
Closed-form formula and a₅ for aₙ = 3aₙ₋₁ + 1
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Output
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