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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 7 |
| 6 | 9 |
| 7 | 11 |
| 8 | 1751 |
| 9 | 2031 |
| 10 | 45012 |
| 11 | 105772 |
| 12 | 1266256 |
| 13 | 1490601 |
| 14 | 1774525 |
[1,2,3,4,7,9,11,1751,2031,45012,105772,1266256, 1490601,1774525] |