an=12+22+...+n2
| n(n + 1)(2n + 1) | ||
an = 12 + 22 + ... + n2 = | ||
| 6 |
| 1 * 2 * 3 | ||
a1 = | = 1 | |
| 6 |
| 2 * 3 * 5 | ||
a2 = | = 5 | |
| 6 |
| 3 * 4 * 7 | ||
a3 = | = 14 | |
| 6 |
| 2 | ||
a1= | = policz | |
| 1 |
| 2 | ||
a2= | = policz | |
| 2 |
| 2 | ||
a3= | = policz | |
| 3 |
| 2 | ||
a4= | = policz | |
| 4 |
| 2 | ||
a{10}= | = plicz | |
| 10 |
| 2 | ||
a100= | = policz | |
| 100 |
| 2 | ||
a158= | = policz | |
| 158 |