What is the s'th term of -9, -25, -59, -117, -205, -329?
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What is the o'th term of 114, 227, 342, 459?
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What is the y'th term of 7, 10, 9, -2, -29, -78?
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What is the f'th term of -37, -60, -81, -100, -117, -132, -145?
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What is the r'th term of -5, -19, -43, -77, -121?
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What is the g'th term of 681, 1363, 2045?
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What is the i'th term of -108, -176, -258, -360, -488, -648?
一个美术生