What is the u'th term of 0, 28, 76, 144?
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What is the a'th term of 18, 36, 58, 84?
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What is the s'th term of -1772, -1777, -1784, -1793?
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What is the x'th term of 50, 94, 136, 176, 214, 250, 284?
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What is the w'th term of -3712, -3707, -3698, -3685?
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What is the z'th term of 39064, 39062, 39060, 39058?
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What is the x'th term of 3, -48, -153, -318, -549?
一个美术生