What is the a'th term of -1, -7, -15, -25, -37?
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What is the k'th term of 15, 92, 169, 246, 323, 400?
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What is the k'th term of -288, -576, -864, -1152?
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What is the x'th term of -3559, -3561, -3563, -3565, -3567?
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What is the r'th term of 16, 27, 28, 19, 0, -29?
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What is the a'th term of 5508, 5510, 5514, 5520?
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What is the n'th term of 80, 67, 52, 35, 16, -5?
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What is the m'th term of -175, -269, -363?
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What is the j'th term of 62, 136, 224, 326, 442?
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What is the y'th term of -15, -78, -183, -330, -519?
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What is the v'th term of -12, -52, -98, -150, -208, -272, -342?
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What is the k'th term of -214, -870, -1964, -3496, -5466?
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What is the f'th term of 212, 848, 1906, 3386?
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