| 0 | 0. | 1 | = | 0 | 0. | 1 |
| 2 | 1 | 3 | = | (0 + 2) | (0 + 1) | (1 + 2) |
| 4 | 2 | 5 | = | (2 + 2) | (1 + 1) | (3 + 2) |
| 6 | 3 | 7… | = | (4 + 2) | (2 + 1) | (5 + 2)… |