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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 7 |
| 3 | 83 |
| 4 | 1661 |
| 5 | 49829 |
| 6 | 2092819 |
| 7 | 117197863 |
| 8 | 8438246137 |
| 9 | 759442152329 |
| 10 | 83538636756191 |
| 11 | 11027100051817211 |
| 12 | 1720227608083484917 |
| 13 | 313081424671194254893 |
| 14 | 65747099180950793527531 |
| 15 | 15779303803428190446607439 |
| 16 | 4291970634532467801477223409 |
[1,1,7,83,1661,49829,2092819,117197863,8438246137, 759442152329,83538636756191,11027100051817211, 1720227608083484917,313081424671194254893, 65747099180950793527531, 15779303803428190446607439, 4291970634532467801477223409] |