a | 1 |
a | n+1 |
| ||
|
| ||
2 |
| ||
3 |
| ||
4 |
| ||
n+1 |
an |
an+1 |
1 |
an+1 |
an+1 |
an |
1 |
an |
1 |
a1 |
1 |
p |
1 |
an+1 |
1 |
an |
1 |
an |
1 |
p |
1 |
an |
1 |
p |
1 |
p |
1 | ||
n-1+
|
1 |
p |
an |
n+1 |
1 | ||
(n+1)(n-1+
|
1 |
n(n+1) |
1 |
n |
1 |
n+1 |
a1 |
2 |
a2 |
3 |
an |
n+1 |
1 |
2 |
1 |
2 |
1 |
3 |
1 |
n |
1 |
n+1 |
1 |
n+1 |
n |
n+1 |
1 |
12 |
1 |
22 |
1 |
32 |
1 |
n2 |
A.0 | B.1 | C.2 | D.3 |
1 |
2 |
1 |
2 |
an+1 |
an |
ak+1 |
ak |
1 |
1+a1 |
1 |
(1+a1)(1+a2) |
1 |
(1+a1)(1+a2)…(1+an) |
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