What is the z'th term of -20, -52, -106, -194, -328?
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What is the x'th term of 71, 83, 95, 107?
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What is the c'th term of 132, 134, 136?
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What is the f'th term of 25, 108, 247, 442?
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What is the z'th term of 90, 223, 356?
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What is the i'th term of 18, 31, 56, 99, 166?
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What is the t'th term of -4124, -4138, -4162, -4196?
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What is the p'th term of 542, 1085, 1628, 2171, 2714?
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What is the k'th term of -8, -25, -48, -77, -112, -153, -200?
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What is the m'th term of -25, -41, -59, -79, -101?
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What is the m'th term of -50, -33, -16, 1, 18?
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What is the z'th term of -63, -271, -613, -1083, -1675?
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What is the f'th term of 200, 405, 614, 827?