1 |
2 |
4 |
5 |
am+an |
(1+am)(1+an) |
ap+aq |
(1+ap)(1+aq) |
2 |
3 |
2α+1 |
α+2 |
2an-1+1 |
an-1+2 |
an-1-1 |
an-1+2 |
1 |
an-1 |
an-1+2 |
an-1-1 |
3 |
an-1-1 |
1 |
an-1 |
1 |
a n-1-1 |
1 |
an-1 |
3 |
an-1-1 |
1 |
2 |
1 |
an-1 |
1 |
2 |
1 |
an-1-1 |
1 |
2 |
1 |
an-1 |
1 |
2 |
3 |
2 |
1 |
an-1 |
1 |
2 |
1 |
2 |
2 |
3n+1 |
3n-1 |
3n+1 |
am+an |
(1+am)(1+an) |
ap+aq |
(1+ap)(1+aq) |
a1+an |
(1+a1)(1+an) |
a2+an-1 |
(1+a2)(1+an-1) |
1 |
2 |
4 |
5 |
2an-1+1 |
an-1+2 |
1-an |
1+an |
1 |
3 |
1-an-1 |
1+an-1 |
1-an |
1+an |
1-an |
1+an |
1 |
3n |
3n-1 |
3n+1 |
3n-1 |
3n+1 |
2 |
3n+1 |
2 |
3n+1+1 |
2 |
3n+1 |
4•3n |
(3n+1)(3n+1+1) |
4•3n |
32n+1+4•3n+1 |
4 | ||
3n+1+4+
|
4 |
3n+1 |
1 |
32 |
1 |
33 |
1 |
3n+1 |
| ||||
1-
|
2 |
3 |
1 |
3n |
2 |
3 |
1 |
n(n+1) |
n |
2n |
an |
273n |
1 | ||
1+
|
1 | ||||
|
1 | ||||
|
S6 |
S3 |
1 |
2 |
1 |
2 |
1 |
n(n+2) |
A.
| B.
| C.
| D.
|
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