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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 9 |
| 2 | 289 |
| 3 | 14409 |
| 4 | 908001 |
| 5 | 65898009 |
| 6 | 5246665201 |
| 7 | 445752724041 |
| 8 | 39731504675041 |
| 9 | 3674479246416009 |
| 10 | 349918540195094289 |
| 11 | 34125049533650776281 |
| 12 | 3394306634561379583281 |
| 13 | 343284252364774351717641 |
| 14 | 35215197976859176290014289 |
| 15 | 3657148830889736882170190409 |
[1,9,289,14409,908001,65898009,5246665201, 445752724041,39731504675041,3674479246416009, 349918540195094289,34125049533650776281, 3394306634561379583281,343284252364774351717641, 35215197976859176290014289, 3657148830889736882170190409] |