r15 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
n15 | 1 | 2 | 3 - 4 | 5 | 6 - 7 | 8 | 9 | 10 - 11 | 12 | 13 - 14 | 15 | 16 |