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| n | a(n) |
|---|---|
| 2 | 1 |
| 3 | 2 |
| 4 | 1 |
| 5 | 1 |
| 6 | 29 |
| 7 | 1 |
| 8 | 161 |
| 9 | 207 |
| 10 | 163047 |
| 11 | 19952084 |
| 12 | 1395363 |
| 13 | 37433304 |
| 14 | 1894884996 |
| 15 | 22006266 |
| 16 | 5012512 |
| 17 | 159420748 |
| 18 | 7687917 |
| 19 | 856655287905375 |
| 20 | 57388884947 |
| 21 | 1344799562797 |
| 22 | 46899771521770733 |
| 23 | 74069716582896006 |
| 24 | 382520592142795071229 |
| 25 | 19340660897970532723387 |
[1,2,1,1,29,1,161,207,163047,19952084,1395363, 37433304,1894884996,22006266,5012512,159420748, 7687917,856655287905375,57388884947,1344799562797, 46899771521770733,74069716582896006, 382520592142795071229,19340660897970532723387] |