| ⎧ | a1 = 4 | |
| ⎩ | an + 1 = 1/2an2 − 4n |
| 1 | ||
a4 = | a32 − 4*3 | |
| 2 |
| 1 | ||
a3 = | a22 − 4*2 | |
| 2 |
| 1 | ||
a2 = | a12 − 4*1 | |
| 2 |
| 1 | 1 | |||
a2 = | * 42 − 4 = | * 16 − 4 = 8 − 4 = 4 | ||
| 2 | 2 |
| 1 | ||
a3 = | * 42 − 8 = 8 − 8 = 0 | |
| 2 |
| 1 | ||
a4 = | * 02 − 12 = −12 | |
| 2 |
| 5^2 | 52 |
| 2^{10} | 210 |
| a_2 | a2 |
| a_{25} | a25 |
| p{2} | √2 |
| p{81} | √81 |
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