已知函数f(x)对应关系如表所示,数列{an}满足a1=3,an+1=f(an),则a2015=________.
| x |
1 |
2 |
3 |
| f(x) |
3 |
2 |
1 |
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已知函数f(x)对应关系如表所示,数列{an}满足a1=3,an+1=f(an),则a2015=________.
| x |
1 |
2 |
3 |
| f(x) |
3 |
2 |
1 |
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