What is the h'th term of 124, 126, 128, 130?
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What is the b'th term of -20, -31, -48, -71?
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What is the z'th term of -10, -20, -30?
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What is the t'th term of 24, 80, 178, 330, 548?
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What is the u'th term of -165, -151, -135, -117, -97?
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What is the y'th term of -333, -325, -313, -297, -277, -253?
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What is the a'th term of -14553, -14552, -14551, -14550?
一个美术生