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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 4 |
| 4 | 302 |
| 5 | 2569966041123963092 |
| 6 | 76230976900860740792605252293646252383143627390965685153124757864 |
[1,1,4,302,2569966041123963092, 76230976900860740792605252293646252383143627390965\ 685153124757864] |