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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 9 |
| 2 | 225 |
| 3 | 8225 |
| 4 | 351225 |
| 5 | 16354233 |
| 6 | 805243257 |
| 7 | 41229480825 |
| 8 | 2172976383825 |
| 9 | 117106008311825 |
| 10 | 6423711336265041 |
| 11 | 357470875526646609 |
| 12 | 20131502573232075025 |
| 13 | 1145190201805448075025 |
| 14 | 65706503254247744075025 |
[1,9,225,8225,351225,16354233,805243257, 41229480825,2172976383825,117106008311825, 6423711336265041,357470875526646609, 20131502573232075025,1145190201805448075025, 65706503254247744075025] |