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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 9 |
| 4 | 189 |
| 5 | 753 |
| 6 | 987 |
| 7 | 6739 |
| 8 | 10953 |
| 9 | 51963 |
| 10 | 171897 |
| 11 | 224081 |
| 12 | 635031 |
| 13 | 1135001 |
| 14 | 4437459 |
[1,3,9,189,753,987,6739,10953,51963,171897,224081, 635031,1135001,4437459] |