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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 969 |
| 3 | 232551 |
| 4 | 53799849 |
| 5 | 12372096000 |
| 6 | 2842087396401 |
| 7 | 652745210821239 |
| 8 | 149910861311886393 |
| 9 | 34428589607251552779 |
| 10 | 7906872302105745408000 |
| 11 | 1815892322798648692785531 |
| 12 | 417037814066206883492561817 |
| 13 | 95776899454583611992923575575 |
| 14 | 21996121549640772495096513751713 |
[3,969,232551,53799849,12372096000,2842087396401, 652745210821239,149910861311886393, 34428589607251552779,7906872302105745408000, 1815892322798648692785531, 417037814066206883492561817, 95776899454583611992923575575, 21996121549640772495096513751713] |