1 |
Sn |
anbn |
Sn+1 |
|
|
n(n+1) |
2 |
1 |
sn |
2 |
n(n+1) |
1 |
n |
1 |
n+1 |
1 |
s1 |
1 |
s2 |
1 |
sn |
1 |
1 |
1 |
2 |
1 |
2 |
1 |
3 |
1 |
n |
1 |
n+1 |
1 |
n+1 |
2n |
n+1 |
n•2n-1 | ||
|
n•2n |
(n+1)(n+2) |
2n+1 |
n+2 |
2n |
n+1 |
22 |
3 |
21 |
2 |
23 |
4 |
22 |
3 |
2n+1 |
n+2 |
2n |
n+1 |
2n+1 |
n+2 |
. |
| . |
Sn+64 |
n |
2 |
S1S3 |
3 |
S2S4 |
n+1 |
SnSn+2 |
5 |
16 |
1 |
2 |
n |
3 |
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