What is the z'th term of 171, 189, 207, 225?
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What is the z'th term of 17, 69, 147, 245, 357, 477?
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What is the d'th term of -58, -65, -84, -121, -182, -273, -400?
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What is the a'th term of 1266, 2529, 3792?
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What is the v'th term of -58, -114, -170, -226, -282?
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What is the u'th term of 25, 50, 79, 112, 149, 190?
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What is the a'th term of -92, -90, -88?
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What is the l'th term of -1681, -3355, -5029, -6703, -8377?
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What is the x'th term of 43, 178, 403, 718, 1123, 1618?
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What is the n'th term of 9, 81, 203, 375?
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What is the m'th term of -27, -33, -43, -57, -75?
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What is the f'th term of 377, 365, 337, 287, 209?
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What is the f'th term of 1075, 1082, 1093, 1108, 1127, 1150, 1177?
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