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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 35 |
| 4 | 275 |
| 5 | 12161 |
| 6 | 3015179 |
| 7 | 1610981344 |
| 8 | 1479214192234 |
| 9 | 4028895802966726 |
| 10 | 43695679891258322395 |
[1,2,35,275,12161,3015179,1610981344, 1479214192234,4028895802966726, 43695679891258322395] |