What is the c'th term of -89, -77, -51, -5, 67, 171?
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What is the a'th term of -934, -1865, -2796?
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What is the n'th term of -22, -3, 52, 161, 342, 613, 992, 1497?
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What is the f'th term of -32, -66, -100, -134, -168, -202?
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What is the b'th term of 71, 61, 53, 53, 67, 101?
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What is the o'th term of 98, 126, 194, 320, 522, 818?
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What is the d'th term of -702, -701, -700?
一个美术生