Correct: 2, 4, 6, 8, 10, 5, 10, 15, 20, 25, 10, 6, 2, -2, -6, 1/2, 1, 3/2, 2, 5/2, -3, -7, -11, -15, -19, Incorrect: 2, 4, 8, 16, 32, 1, 1, 2, 3, 5,8, 5, 10, 20, 40, 80, 3, 6, 9, 13, 16, 1/2, 1/4, 1/8, 1/16, 1/32,

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