What is the x'th term of -118, -115, -112?
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What is the b'th term of -183, -24, 137, 300, 465?
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What is the n'th term of -840, -1678, -2518, -3360?
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What is the z'th term of -14, 10, 34, 58?
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What is the f'th term of 26, 61, 102, 149?
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What is the a'th term of -148, -137, -122, -103, -80, -53, -22?
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What is the q'th term of -35, -30, -21, -8, 9, 30?
一个美术生