Forme geometriche ed espressioni algebriche

Forma a croce

Forma a croce

Forma a croce

Forma a croce

| n | verde/green | expression | totale/total |
|---|---|---|---|
| 0 | 1 | 0 x 4 + 1 | 1 |
| 1 | 1 | 1 + 4 | 5 |
| 2 | 1 | 5 + 4 | 9 |
| 3 | 1 | 9 + 4 | 13 |
| 4 | 1 | 13 + 4 | 17 |
| 5 | 1 | 17 + 4 | 21 |
| ... | ... | ... | ... |
| n | 1 | ? | ? |
Forma a croce
| n | verde/green | rosso/red | expression | totale/total |
|---|---|---|---|---|
| 0 | 1 | n | 1 + 4 x n | 1 |
| 1 | 1 | n | 1 + 4 x n | 5 |
| 2 | 1 | n | 1 + 4 x n | 9 |
| 3 | 1 | n | 1 + 4 x n | 13 |
| 4 | 1 | n | 1 + 4 x n | 17 |
| 5 | 1 | n | 1 + 4 x n | 21 |
| ... | ... | n | ... | ... |
| n | 1 | n | 1 + 4 x n | 1 + 4 x n |

Forma a croce

Forma inventata - 1

Forma inventata - 1

| n | verde/green | rosso/red | azzurro/cyan | expression | totale/total |
|---|---|---|---|---|---|
| 0 | 1 | n | n x n | 1 + (n x n) + (2 x n) | 1 |
| 1 | 1 | n | n x n | 1 + (n x n) + (2 x n) | 4 |
| 2 | 1 | n | n x n | 1 + (n x n) + (2 x n) | 9 |
| 3 | 1 | n | n x n | 1 + (n x n) + (2 x n) | 16 |
| 4 | 1 | n | n x n | 1 + (n x n) + (2 x n) | 25 |
| 5 | 1 | n | n x n | 1 + (n x n) + (2 x n) | 36 |
| ... | ... | n | n x n | 1 + (n x n) + (2 x n) | 1 + (n x n) + (2 x n) |
| n | 1 | n | n x n | 1 + (n x n) + (2 x n) | 1 + (n x n) + (2 x n) |