What is the r'th term of 1255, 2508, 3763, 5020?
上一篇：
What is the u'th term of 13, 59, 173, 385, 725, 1223, 1909, 2813?
下一篇：
What is the v'th term of 9, 7, 19, 57, 133, 259, 447?
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What is the l'th term of -3, 7, 27, 63, 121, 207, 327?
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What is the j'th term of -348, -346, -342, -336, -328, -318?
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What is the v'th term of 8238, 16479, 24720, 32961, 41202, 49443?
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What is the z'th term of 1280, 2580, 3882, 5186?
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What is the j'th term of 190, 181, 168, 151, 130?
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What is the u'th term of 2606, 5207, 7808, 10409?
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What is the u'th term of 13, 59, 173, 385, 725, 1223, 1909, 2813?
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What is the c'th term of 147, 290, 421, 534, 623, 682, 705, 686?
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What is the u'th term of 9713, 9703, 9677, 9629, 9553?
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What is the v'th term of 9, 7, 19, 57, 133, 259, 447?
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What is the c'th term of -67, -278, -631, -1126, -1763, -2542, -3463?
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What is the j'th term of 190, 32, -392, -1214, -2566, -4580, -7388?
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