What is the u'th term of 23, 143, 349, 647, 1043, 1543, 2153, 2879?
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What is the u'th term of -43, -49, -57, -67, -79?
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What is the r'th term of 3, -65, -251, -615, -1217, -2117, -3375?
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What is the k'th term of 485, 964, 1443, 1922?
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What is the z'th term of 192, 165, 90, -57, -300, -663, -1170, -1845?
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What is the j'th term of -6, -25, -54, -93, -142?
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What is the b'th term of 17, 10, 3, -4?
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What is the y'th term of 4, 31, 58?
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What is the r'th term of -331, -330, -329?
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What is the b'th term of 50, 193, 432, 767, 1198?
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What is the t'th term of -120, -115, -102, -81, -52?
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What is the r'th term of -10, -18, -26?
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What is the g'th term of 2300, 2301, 2302, 2303, 2304, 2305?
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