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| n | a(n) |
|---|---|
| 2 | 81 |
| 3 | 841 |
| 4 | 8100 |
| 5 | 80089 |
| 6 | 801025 |
| 7 | 8003241 |
| 8 | 80013025 |
| 9 | 800041225 |
| 10 | 8000050249 |
| 11 | 80000162649 |
| 12 | 800001447184 |
| 13 | 8000004951184 |
| 14 | 80000001609984 |
| 15 | 800000042569984 |
| 16 | 8000000160998400 |
| 17 | 80000000297200369 |
| 18 | 800000000000150481 |
| 19 | 8000000001435765625 |
| 20 | 80000000000015048100 |
[81,841,8100,80089,801025,8003241,80013025, 800041225,8000050249,80000162649,800001447184, 8000004951184,80000001609984,800000042569984, 8000000160998400,80000000297200369, 800000000000150481,8000000001435765625, 80000000000015048100] |