a1 |
3 |
a2 |
3 |
a3 |
3 |
1 |
bnbn+1 |
an+1 |
an |
a2 |
a1 |
an+1 |
an |
a1 |
3 |
a2 |
3 |
a3 |
3 |
1 |
b1b2 |
1 |
b2b3 |
1 |
bnbn+1 |
1 |
3×5 |
1 |
5×7 |
1 |
(2n+1)(2n+3) |
1 |
2 |
1 |
3 |
1 |
5 |
1 |
5 |
1 |
7 |
1 |
2n+1 |
1 |
2n+3 |
1 |
2 |
1 |
3 |
1 |
2n+3 |
n |
6n+9 |
1 |
an |
A.31 | B.32 | C.
| D.
|
A.2n-1 | B.21-n | C.31-n | D.3n-1 |
Sn |
an-1 |
q |
q-1 |
1 |
4 |
1 |
3 |
1 |
b1 |
1 |
b2 |
1 |
bn |
m |
3 |
2+an |
3 |
2 |
2 |
1 |
bn |
1 |
2011 |
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