So $ a_n = b_n + c_n = c_n-1 + a_n-1 $, but better to write: - AMAZONAWS Understanding the Recurrence Relation: How $ a_n = b_n + c_n $ and $ a_n = c_{n-1} + a_{n-1} $ Shapes Advanced Sequences 📅 March 11, 2026 👤 scraface Mar 11, 2026
