1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
2n |
2n-1 |
2n |
2n-1 |
2 |
1 |
4 |
3 |
6 |
5 |
2n |
2n-1 |
2 |
1 |
4 |
3 |
6 |
5 |
2n |
2n-1 |
2 |
1 |
4 |
3 |
6 |
5 |
2n |
2n-1 |
2 |
1 |
4 |
3 |
6 |
5 |
2n |
2n-1 |
2 |
1 |
4 |
3 |
6 |
5 |
2n |
2n-1 |
1 |
2n+1 |
2 |
1 |
4 |
3 |
6 |
5 |
2n |
2n-1 |
1 |
2n+1 |
2 |
1 |
4 |
3 |
6 |
5 |
2n |
2n-1 |
1 |
2n+1 |
2 |
1 |
4 |
3 |
6 |
5 |
2n |
2n-1 |
2n+2 |
2n+1 |
1 |
2n+3 |
f(n+1) |
f(n) |
2n+1 |
2n+3 |
2n+2 |
2n+1 |
(2n+2)2 |
(2n+3)(2n+1) |
4n2+8n+4 |
4n2+8n+3 |
4 |
3 |
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 | ||||
[
|
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 |
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