求助一道数字推理题:1,2,4,6,9,(),18,请附上您的思路
人气:191 ℃ 时间:2020-01-29 07:48:18
解答
13
相邻两数相加得到新数列:3 6 10 15 22 31
相邻两数相减得到新数列:-3 -4 -5 -7 -9
相邻两数相加得到新数列:-7 -9 -12 -16
则得到-7-2=-9 -9-3=12 -12-4=-16
OK
搞定
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