What is the d'th term of 193, 220, 273, 358, 481, 648, 865, 1138?
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What is the x'th term of 23, 33, 29, 5, -45, -127?
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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 u'th term of -460, -453, -432, -391, -324, -225?
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What is the s'th term of -57, -108, -161, -216, -273?
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What is the i'th term of 9, 15, 11, -9, -51?
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What is the q'th term of -91, -180, -269, -358?
一个美术生