IOQM · Mathematics · Algebra
Sequences and Series
AP, GP, HP, AGP, telescoping sums, recursive sequences and closed forms.
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The sequence {aₙ} satisfies a₁ = 2, a₂ = 5, and aₙ₊₂ = 3aₙ₊₁ - 2aₙ for n ≥ 1. Find a₆.