| r2 |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
| n2 |
1 - 2 |
3 - 5 |
6 - 7 |
8 - 10 |
11 - 12 |
13 - 15 |
16 - 17 |
18 - 20 |
21 - 22 |
23 - 24 |