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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 1 |
| 9 | 177 |
| 10 | 345 |
| 11 | 2505 |
| 12 | 5729 |
| 13 | 75825 |
| 14 | 187849 |
| 15 | 6215801 |
| 16 | 19558129 |
| 17 | 3054260057 |
| 18 | 12287993577 |
| 19 | 1988214768097 |
| 20 | 9763619895845 |
| 21 | 2194779047865427 |
| 22 | 13072631855408245 |
[1,1,1,1,1,1,1,1,177,345,2505,5729,75825,187849, 6215801,19558129,3054260057,12287993577, 1988214768097,9763619895845,2194779047865427, 13072631855408245] |