Which of these sequences follows the recurrence an=2an−1−1a_n = 2a_{n-1} - 1an=2an−1−1 starting with a0=2a_0 = 2a0=2?
2,3,5,92, 3, 5, 92,3,5,9
2,4,8,162, 4, 8, 162,4,8,16
2,3,4,52, 3, 4, 52,3,4,5
2,2,2,22, 2, 2, 22,2,2,2