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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 8 |
| 5 | 27 |
| 6 | 343 |
| 7 | 12167 |
| 8 | 205379 |
| 9 | 30959144 |
| 10 | 3574558889 |
| 11 | 553185473329 |
| 12 | 578280195945297 |
| 13 | 238670664494938073 |
| 14 | 487424450554237378792 |
| 15 | 2035972062206737347698803 |
| 16 | 4801616835579099275862827431 |
[1,1,1,1,8,27,343,12167,205379,30959144, 3574558889,553185473329,578280195945297, 238670664494938073,487424450554237378792, 2035972062206737347698803, 4801616835579099275862827431] |