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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 5 |
| 3 | 119 |
| 4 | 12783 |
| 5 | 5739069 |
| 6 | 10426379903 |
| 7 | 76135573607705 |
| 8 | 2234839096465512877 |
| 9 | 263966776643953756165279 |
| 10 | 125532809982533901346598445525 |
| 11 | 240383033223427436734891985275952307 |
[1,1,5,119,12783,5739069,10426379903, 76135573607705,2234839096465512877, 263966776643953756165279, 125532809982533901346598445525, 240383033223427436734891985275952307] |