1 |
Sn-1 |
1 |
Sn |
1 |
2 |
bn+2 |
(n+5)bn-1 |
b | 22 |
b | 23 |
b | 2n |
1 |
Sn-1 |
1 |
Sn |
1 |
Sn |
1 |
Sn-1 |
1 |
Sn |
1 |
2 |
1 |
S1 |
1 |
Sn |
1 |
2n |
1 |
2n |
1 |
2(n-1) |
1 |
2(n-1)n |
1 |
2(n-1)n |
|
1 |
2(n-1)n |
1 |
n |
bn+2 |
(n+5)bn-1 |
n+1 |
(n+2)(n+5) |
1 | ||
(n+1)+
|
1 |
9 |
b | 22 |
b | 23 |
b | 2n |
1 |
22 |
1 |
32 |
1 |
(n+1)2 |
1 |
1×2 |
1 |
2×3 |
1 |
n(n+1) |
1 |
2 |
1 |
2 |
1 |
3 |
1 |
n |
1 |
n+1 |
1 |
n+1 |
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