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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 17 |
| 3 | 817 |
| 4 | 77665 |
| 5 | 12299681 |
| 6 | 2927458801 |
| 7 | 977470825297 |
| 8 | 435879178173377 |
| 9 | 250203384739543105 |
| 10 | 179679913060513513681 |
| 11 | 157803532571496752836721 |
| 12 | 166379813794981914558563617 |
| 13 | 207381133084068630121614737377 |
| 14 | 301636151761882780863343070164145 |
| 15 | 506313774511002681383380409639226001 |
[1,1,17,817,77665,12299681,2927458801, 977470825297,435879178173377,250203384739543105, 179679913060513513681,157803532571496752836721, 166379813794981914558563617, 207381133084068630121614737377, 301636151761882780863343070164145, 506313774511002681383380409639226001] |