| 1 = | 1 | 13 = | 12 |
| 1 + 2 = | 3 | 13 + 23 = 9 = | 32 |
| 1 + 2 + 3 = | 6 | 13 + 23 + 33 = 36 = | 62 |
| 1 + 2 + 3 + 4 = | 10 | 13 + 23 + 33 + 43 = 100 = | 102 |
| ……. |
Τα μυστήρια των μαθηματικών και της ζωής
| 1 = | 1 | 13 = | 12 |
| 1 + 2 = | 3 | 13 + 23 = 9 = | 32 |
| 1 + 2 + 3 = | 6 | 13 + 23 + 33 = 36 = | 62 |
| 1 + 2 + 3 + 4 = | 10 | 13 + 23 + 33 + 43 = 100 = | 102 |
| ……. |