What is the u'th term of 28, 243, 820, 1939, 3780, 6523, 10348, 15435?
上一篇：
What is the l'th term of -14, 128, 286, 466, 674, 916, 1198, 1526?
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What is the c'th term of 21, 35, 49, 57, 53?
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What is the w'th term of -37, -74, -113, -154?
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What is the m'th term of -66, -62, -56, -48, -38, -26?
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What is the o'th term of -9, -30, -97, -234, -465, -814, -1305?
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What is the y'th term of 8, 31, 76, 143?
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What is the v'th term of 153, 155, 159, 165, 173, 183, 195?
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What is the l'th term of 115, 114, 113?
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What is the l'th term of -14, 128, 286, 466, 674, 916, 1198, 1526?
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What is the d'th term of 110, 425, 944, 1661, 2570, 3665, 4940?
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What is the g'th term of -95, -381, -851, -1499, -2319, -3305?
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What is the c'th term of 21, 35, 49, 57, 53?
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What is the x'th term of 663, 2629, 5913, 10521, 16459, 23733, 32349?
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What is the n'th term of 1881, 1884, 1887?
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