Tabla del -491
| -491 | X | 1 | = | -491 |
| -491 | X | 2 | = | -982 |
| -491 | X | 3 | = | -1473 |
| -491 | X | 4 | = | -1964 |
| -491 | X | 5 | = | -2455 |
| -491 | X | 6 | = | -2946 |
| -491 | X | 7 | = | -3437 |
| -491 | X | 8 | = | -3928 |
| -491 | X | 9 | = | -4419 |
| -491 | X | 10 | = | -4910 |
| -491 | X | 1 | = | -491 |
| -491 | X | 2 | = | -982 |
| -491 | X | 3 | = | -1473 |
| -491 | X | 4 | = | -1964 |
| -491 | X | 5 | = | -2455 |
| -491 | X | 6 | = | -2946 |
| -491 | X | 7 | = | -3437 |
| -491 | X | 8 | = | -3928 |
| -491 | X | 9 | = | -4419 |
| -491 | X | 10 | = | -4910 |