What is the v'th term of -68, -139, -210?
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What is the c'th term of -26, -119, -276, -497?
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What is the j'th term of 742, 1484, 2226, 2968?
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What is the p'th term of 7, 10, 9, 4, -5, -18, -35?
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What is the z'th term of -81, -347, -791, -1413, -2213, -3191, -4347?
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What is the o'th term of -50, -94, -130, -158?
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What is the l'th term of 150, 147, 134, 105, 54, -25?
一个美术生