找规律1 2 5 10 17 ( ) ( ) 29 ( ) ( ) 11 7 4 2 1
5个回答
1+1=2
2+3=5
5+5=10
10+7=17
17+9=26
26+11=37
37-8=29
29-7=22
22-6=16
16-5=11
11-4=7
7-3=4
4-2=2
2-1=1
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