What is the u'th term of 661, 2644, 5951, 10582, 16537, 23816, 32419?
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What is the w'th term of -28, -74, -122, -172?
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What is the i'th term of 5, 6, 9, 14?
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What is the q'th term of -3138, -6277, -9416?
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What is the l'th term of -9, -119, -421, -1011, -1985, -3439, -5469?
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What is the p'th term of -78, -160, -242, -324, -406, -488?
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What is the l'th term of 7484, 7487, 7492, 7499, 7508, 7519?
一个美术生