What is the y'th term of 186, 696, 1538, 2712, 4218?
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What is the p'th term of 80, 100, 130, 170, 220?
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What is the k'th term of -41, -116, -241, -416?
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What is the w'th term of -131, -139, -153, -173?
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What is the u'th term of -460, -453, -432, -391, -324, -225?
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What is the z'th term of -69, -112, -157, -204, -253, -304, -357?
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What is the x'th term of 23, 33, 29, 5, -45, -127?
一个美术生