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1. \(0, 4, 4, 4, 4, 4, \ldots\text{.}\)

2. \(1, 4, 16, 64, 256, \ldots\text{.}\)

3. \(0, 1, -1, 1, -1, 1, -1, \ldots\text{.}\)

4. \(0, 3, -6, 9, -12, 15, -18, \ldots\text{.}\)

5. \(1, 3, 6, 9, 12, 15, \ldots\text{.}\)