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| n | a(n) |
|---|---|
| 2 | 1 |
| 3 | 3 |
| 4 | 9 |
| 5 | 1 |
| 6 | 315 |
| 7 | 3855 |
| 8 | 13797 |
| 9 | 1 |
| 10 | 4 |
| 11 | 34636833 |
| 12 | 3 |
| 13 | 163 |
| 14 | 5 |
| 15 | 25 |
| 16 | 60 |
| 17 | 1525 |
| 18 | 18900352534538475 |
| 19 | 1445580 |
| 20 | 1609 |
| 21 | 3 |
| 22 | 17 |
| 23 | 1 |
| 24 | 3477359660913989536233495 |
| 25 | 59 |
| 26 | 36793758459 |
| 27 | 12379533 |
| 28 | 758220919762679268184943973309 |
| 29 | 3421967 |
| 30 | 15 |
[1,3,9,1,315,3855,13797,1,4,34636833,3,163,5,25, 60,1525,18900352534538475,1445580,1609,3,17,1, 3477359660913989536233495,59,36793758459,12379533, 758220919762679268184943973309,3421967,15] |