What is the k'th term of -5, -37, -89, -161, -253?
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What is the n'th term of 2869, 5741, 8625, 11527, 14453, 17409?
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What is the s'th term of 2140, 2130, 2120, 2110, 2100?
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What is the a'th term of -37, -81, -139, -217, -321?
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What is the f'th term of -267, -535, -803, -1071?
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What is the u'th term of -1589, -3172, -4757, -6344, -7933?
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What is the l'th term of 5305, 5295, 5279, 5257, 5229?
一个美术生