A sequence is defined recursively by $ a_1 = 2 $, $ a_2 = 3 $, and $ a_n = a_n-1 + 2a_n-2 $ for $ n \ge 3 $. Find $ a_6 $. - AMAZONAWS

📅 March 6, 2026 👤 scraface

Mar 06, 2026

$A sequence is defined recursively by $ a_1 = 2 $, $ a_{2} = 3 $, and $ a_{n} = a_{n-1} + 2a_{n-2} $ for $ n \ge 3 $. Find $ a_6 $.$