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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 11 |
| 4 | 131 |
| 5 | 17283 |
| 6 | 298719251 |
| 7 | 89233191216703091 |
| 8 | 7962562414716697755180182566955283 |
| 9 | 63402400208259008611705446682872670539115181497111590988296570564371 |
[1,1,3,11,131,17283,298719251,89233191216703091, 7962562414716697755180182566955283, 63402400208259008611705446682872670539115181497111\ 590988296570564371] |