Jared creates a number sequence that has a first term of 2 and a second term of 5. Each term after the second is created by subtracting the term before the previous term from twice the previous term. He uses S(C) to denote
term number t in his sequence. For example, S(1) = 2 and S(2) = 5.
Which of the following can be used to find the value of S(n) for some positive integer n greater than 2?