| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 16 |
| 4 | 1957 |
| 5 | 9864101 |
| 6 | 3554627472076 |
| 7 | 138879579704209680022 |
| 8 | 828772446866981044847857913441 |
| 9 | 1011182700521015817607065606491025592595137 |
| 10 | 325166909258549255903203528672831330994640286650913570126 |
[1,1,2,16,1957,9864101,3554627472076, 138879579704209680022, 828772446866981044847857913441, 1011182700521015817607065606491025592595137, 32516690925854925590320352867283133099464028665091\ 3570126] |