What is the b'th term of -79, -295, -647, -1135, -1759, -2519, -3415?
上一篇：
What is the j'th term of -80, -321, -714, -1253, -1932, -2745, -3686, -4749?
下一篇：
What is the f'th term of 102, 445, 1026, 1851, 2926, 4257, 5850?
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What is the j'th term of -80, -321, -714, -1253, -1932, -2745, -3686, -4749?
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What is the y'th term of -3, -11, -27, -51?
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What is the c'th term of -1839, -3683, -5527, -7371?
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What is the f'th term of 102, 445, 1026, 1851, 2926, 4257, 5850?
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What is the k'th term of 67, 85, 127, 205, 331?
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What is the z'th term of 80, 99, 110, 107, 84?
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