an+1 |
an |
1 |
64 |
1 |
17n-2 |
17 |
4 |
72 |
17 |
an+2 |
an+1 |
an |
an+1 |
1 |
bn |
1 |
4 |
17 |
64 |
1 |
bn |
1 |
bn-1 |
bn-bn-1 |
bnbn-1 |
1 |
17 |
1 |
172 |
1 |
17n-1 |
1 |
64 |
1 |
17n-2 |
1 |
4 |
1 |
17 |
1 |
17 |
1 |
17 |
1 |
4 |
(
| ||||
1-
|
1 |
64 |
1 |
17n-1 |
an+1 |
an |
an+1 |
an |
an |
an-1 |
an |
(n+2)! |
1 |
2 |
| ||
个n |
| ||
n个 |
1 |
an+an+1 |
1 |
a1a2 |
1 |
a2a3 |
1 |
a2008a2009 |
1 |
2 |
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