| 2640 | X | 1 | = | 2640 |
| 2640 | X | 2 | = | 5280 |
| 2640 | X | 3 | = | 7920 |
| 2640 | X | 4 | = | 10560 |
| 2640 | X | 5 | = | 13200 |
| 2640 | X | 6 | = | 15840 |
| 2640 | X | 7 | = | 18480 |
| 2640 | X | 8 | = | 21120 |
| 2640 | X | 9 | = | 23760 |
| 2640 | X | 10 | = | 26400 |
| 2640 | X | 11 | = | 29040 |
| 2640 | X | 12 | = | 31680 |
| 2640 | X | 13 | = | 34320 |
| 2640 | X | 14 | = | 36960 |
| 2640 | X | 15 | = | 39600 |
| 2640 | X | 16 | = | 42240 |
| 2640 | X | 17 | = | 44880 |
| 2640 | X | 18 | = | 47520 |
| 2640 | X | 19 | = | 50160 |
| 2640 | X | 20 | = | 52800 |