What is the r'th term of -1471, -2927, -4381, -5833?
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What is the n'th term of -61, -60, -59, -58, -57, -56?
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What is the x'th term of -51, -53, -55, -57?
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What is the f'th term of 10, 19, 28, 37, 46?
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What is the u'th term of 4534, 9067, 13600?
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What is the v'th term of -72, -60, -34, 12, 84, 188?
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What is the a'th term of -20061, -40120, -60179, -80238, -100297?
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What is the d'th term of 147, 315, 473, 615, 735?
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What is the d'th term of 57, 57, 69, 99, 153, 237?
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What is the p'th term of 269, 277, 301, 347, 421?
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What is the l'th term of 694, 695, 696, 697, 698?
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What is the m'th term of 15, 42, 109, 234, 435, 730?
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What is the l'th term of 122, 204, 306, 440, 618, 852, 1154?
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