What is the u'th term of -5, 7, 27, 55, 91, 135, 187?
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What is the w'th term of 105, 143, 243, 435, 749, 1215?
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What is the b'th term of 5, 32, 75, 134, 209, 300?
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What is the s'th term of 66, 117, 154, 171, 162, 121, 42?
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What is the b'th term of -3, -7, -29, -81, -175?
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What is the n'th term of -6915, -6916, -6919, -6924, -6931?
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What is the x'th term of -37, -26, 7, 74, 187, 358, 599?
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