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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 17 |
| 4 | 315 |
| 5 | 9505 |
| 6 | 413523 |
| 7 | 26287601 |
| 8 | 2238416523 |
| 9 | 246589091137 |
| 10 | 34186190864163 |
| 11 | 5819027995038161 |
| 12 | 1193323792251385179 |
| 13 | 290182644485513596513 |
| 14 | 82559758988564841189747 |
[1,3,17,315,9505,413523,26287601,2238416523, 246589091137,34186190864163,5819027995038161, 1193323792251385179,290182644485513596513, 82559758988564841189747] |