1 |
2 |
1 |
2 |
1 |
n |
n-1 |
n |
1 |
n |
2 |
n |
n-1 |
n |
4 |
4an-1 |
b | 21 |
b | 22 |
b | 23 |
b | 2n |
16 |
n |
1 |
2 |
1 |
2 |
1 |
4 |
1 |
n |
1 |
n |
1 |
n |
1 |
2 |
1 |
n |
n-1 |
n |
1 |
n |
n-1 |
n |
n-1 |
n |
1 |
n |
1 |
n |
n-1 |
n |
n+1 |
2 |
n+1 |
4 |
4 |
4an-1 |
4 |
n |
b | 21 |
b | 22 |
b | 2n |
1 |
22 |
1 |
32 |
1 |
n2 |
1 |
1×2 |
1 |
2×3 |
1 |
n(n-1) |
1 |
2 |
1 |
2 |
1 |
3 |
1 |
n-1 |
1 |
n |
1 |
n |
16 |
n |
1 | ||||
[
|
m |
150 |
a1 |
a2 |
a2 |
a3 |
an |
an+1 |
n |
2 |
1 |
3 |
an+1 |
an |
1 |
64 |
1 |
17n-2 |
an+1 |
an |
an+1 |
an |
an |
an-1 |
an |
(n+2)! |
1 |
2 |
| ||
个n |
| ||
n个 |
1 |
an+an+1 |
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