1 |
2 |
1 |
a1a2 |
1 |
a2a3 |
1 |
anan+1 |
1 |
8 |
1 |
2 |
1 |
2 |
1 |
a1a2 |
1 |
a2a3 |
1 |
anan+1 |
1 |
4×6 |
1 |
6×8 |
1 |
(2n+2)(2n+4) |
1 |
2 |
1 |
4 |
1 |
6 |
1 |
2 |
1 |
6 |
1 |
8 |
1 |
2 |
1 |
2n+2 |
1 |
2n+4 |
1 |
2 |
1 |
4 |
1 |
6 |
1 |
6 |
1 |
8 |
1 |
2n+2 |
1 |
2n+4 |
1 |
2 |
1 |
4 |
1 |
2n+4 |
1 |
8 |
1 |
4(n+2) |
1 |
a1a2 |
1 |
a2a3 |
1 |
anan+1 |
1 |
8 |
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