来自安宏杰的问题
找规律填数字4,-2,10,-14,34·······第n个数字是()
找规律填数字4,-2,10,-14,34·······第n个数字是()
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2020-11-23 02:57
找规律填数字4,-2,10,-14,34·······第n个数字是()
找规律填数字4,-2,10,-14,34·······第n个数字是()
奇数位:4×4-6=10
10×4-6=34
后面填:34×4-6=130.
偶数位:(-2)×4+(-6)=-14
(-14)×4+(-6)=-62,
得:4,-2,10,-14,34,-62,130.
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