| 2121 | X | 1 | = | 2121 |
| 2121 | X | 2 | = | 4242 |
| 2121 | X | 3 | = | 6363 |
| 2121 | X | 4 | = | 8484 |
| 2121 | X | 5 | = | 10605 |
| 2121 | X | 6 | = | 12726 |
| 2121 | X | 7 | = | 14847 |
| 2121 | X | 8 | = | 16968 |
| 2121 | X | 9 | = | 19089 |
| 2121 | X | 10 | = | 21210 |
| 2121 | X | 11 | = | 23331 |
| 2121 | X | 12 | = | 25452 |
| 2121 | X | 13 | = | 27573 |
| 2121 | X | 14 | = | 29694 |
| 2121 | X | 15 | = | 31815 |
| 2121 | X | 16 | = | 33936 |
| 2121 | X | 17 | = | 36057 |
| 2121 | X | 18 | = | 38178 |
| 2121 | X | 19 | = | 40299 |
| 2121 | X | 20 | = | 42420 |