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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 7 |
| 5 | 4 |
| 6 | 57 |
| 7 | 5 |
| 8 | 3991 |
| 9 | 6 |
| 10 | 19108909 |
| 11 | 8 |
| 12 | 486867178748497 |
| 13 | 9 |
| 14 | 266669605960335497200501136827 |
| 15 | 10 |
| 16 | 79014087492267334815685283447201270968760518233020971656781 |
| 17 | 11 |
[1,2,3,7,4,57,5,3991,6,19108909,8,486867178748497, 9,266669605960335497200501136827,10, 79014087492267334815685283447201270968760518233020\ 971656781,11] |