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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 12 |
| 3 | 398 |
| 4 | 45519 |
| 5 | 21649928 |
| 6 | 41382940317 |
| 7 | 314293683119573 |
| 8 | 9507225584601580673 |
| 9 | 1146261969825089219425266 |
| 10 | 550762886957237938187269588944 |
| 11 | 1054576957682838130471744629459577753 |
[1,12,398,45519,21649928,41382940317, 314293683119573,9507225584601580673, 1146261969825089219425266, 550762886957237938187269588944, 1054576957682838130471744629459577753] |