What is the c'th term of -70752, -70751, -70750, -70749, -70748, -70747?
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What is the x'th term of 128, 255, 382?
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What is the h'th term of 60, 61, 62, 63, 64, 65?
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What is the l'th term of -166, -167, -168, -169?
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What is the r'th term of -1700, -3400, -5100, -6800?
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What is the l'th term of -111, -118, -129, -144, -163?
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What is the s'th term of 5, -4, -27, -70, -139, -240, -379, -562?
一个美术生