SubArea: Introduction to sequencesLevel: BProject ID: 9000063806Source Problem: 2010000703Accepted: 1Clonable: 1Easy: 0Consider the sequence \(a_{n+1} = a_{n} - 2a_{n-1}\) with \(a_{3} = 0\) and \(a_{4} = -16\). Find \(a_{2} - a_{1}\).\(4\)\(16\)\(- 4\)\(8\)
