| 660 | X | 1 | = | 660 |
| 660 | X | 2 | = | 1320 |
| 660 | X | 3 | = | 1980 |
| 660 | X | 4 | = | 2640 |
| 660 | X | 5 | = | 3300 |
| 660 | X | 6 | = | 3960 |
| 660 | X | 7 | = | 4620 |
| 660 | X | 8 | = | 5280 |
| 660 | X | 9 | = | 5940 |
| 660 | X | 10 | = | 6600 |
| 660 | X | 11 | = | 7260 |
| 660 | X | 12 | = | 7920 |
| 660 | X | 13 | = | 8580 |
| 660 | X | 14 | = | 9240 |
| 660 | X | 15 | = | 9900 |
| 660 | X | 16 | = | 10560 |
| 660 | X | 17 | = | 11220 |
| 660 | X | 18 | = | 11880 |
| 660 | X | 19 | = | 12540 |
| 660 | X | 20 | = | 13200 |