What is the j'th term of 18, 50, 144, 330, 638?
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What is the s'th term of -1870, -3734, -5598, -7462?
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What is the c'th term of 14, 35, 68, 113, 170, 239?
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What is the r'th term of -603, -1212, -1823, -2436, -3051, -3668, -4287?
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What is the f'th term of -3920, -7809, -11708, -15623, -19560, -23525, -27524?
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What is the x'th term of -101, -98, -93, -86, -77?
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What is the y'th term of -296, -286, -262, -218, -148, -46, 94?
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What is the o'th term of 9, 39, 97, 189, 321?
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What is the v'th term of 609, 2438, 5487, 9756, 15245, 21954, 29883?
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What is the k'th term of -536, -537, -538, -539?
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What is the y'th term of 28, 64, 106, 154?
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What is the l'th term of 2, 16, 38, 68, 106?
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What is the x'th term of -236, -191, -50, 235, 712, 1429, 2434?
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