S2 |
b2 |
1 |
3 |
1 |
S1 |
1 |
S2 |
1 |
Sn |
2 |
3 |
S2 |
b2 |
3+a2 |
q |
n(3+3n) |
2 |
1 |
Sn |
2 |
n(3+3n) |
2 |
3 |
1 |
n |
1 |
n+1 |
1 |
S1 |
1 |
S2 |
1 |
Sn |
2 |
3 |
1 |
2 |
1 |
2 |
1 |
3 |
1 |
n |
1 |
n+1 |
2 |
3 |
1 |
n+1 |
1 |
n+1 |
1 |
2 |
1 |
3 |
2 |
3 |
1 |
n+1 |
2 |
3 |
1 |
3 |
1 |
S1 |
1 |
S2 |
1 |
Sn |
2 |
3 |
1 |
2 |
1 |
2 |
1 |
2 |
bn |
an |
bn |
2n |
c1 |
b1+2 |
c2 |
b2+22 |
c3 |
b2+23 |
cn |
bn+2n |
1 |
Sn |
a |
b |
a |
b |
a |
b |
7 |
a |
b |
1 |
an+1 |
1 |
an |
1 |
2 |
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