What is the d'th term of -1715, -3499, -5285, -7073?
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What is the z'th term of 7, 21, 33, 43?
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What is the m'th term of -100, -101, -102?
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What is the i'th term of -47, -41, -35, -29?
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What is the f'th term of -250, -425, -600, -775, -950?
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What is the j'th term of -8, -2, -6, -26, -68, -138, -242, -386?
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What is the v'th term of 1, 13, 25?
一个美术生