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| n | a(n) |
|---|---|
| 0 | 3 |
| 1 | 5 |
| 2 | 15 |
| 3 | 3 |
| 4 | 45 |
| 5 | 15 |
| 6 | 675 |
| 7 | 45 |
| 8 | 30375 |
| 9 | 675 |
| 10 | 20503125 |
| 11 | 30375 |
| 12 | 622782421875 |
| 13 | 20503125 |
| 14 | 12768985843505859375 |
| 15 | 622782421875 |
| 16 | 7952299928506168842315673828125 |
| 17 | 12768985843505859375 |
[3,5,15,3,45,15,675,45,30375,675,20503125,30375, 622782421875,20503125,12768985843505859375, 622782421875,7952299928506168842315673828125, 12768985843505859375] |