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| n | a(n) |
|---|---|
| 6 | 1 |
| 7 | 1 |
| 8 | 4707 |
| 9 | 17576 |
| 10 | 112088578 |
| 11 | 1441214058 |
| 12 | 17605459620761 |
| 13 | 743370332504726 |
| 14 | 19997068111196867031 |
| 15 | 2689483333931146069897 |
| 16 | 171415422163184300298223345 |
| 17 | 71911782152540818802247981150 |
[1,1,4707,17576,112088578,1441214058, 17605459620761,743370332504726, 19997068111196867031,2689483333931146069897, 171415422163184300298223345, 71911782152540818802247981150] |