Answer:
…, −3.5, −2.5, −1.5, 0, 1.5, 2.5, 3.5, …
Explanation:
0, 1, 2, 3, 4, …
…, −4, −3, −2, −1, 0
…, −3, −2, −1, 0, 1, 2, 3, …
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