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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 14 |
| 3 | 256 |
| 4 | 18734 |
| 5 | 6932928 |
| 6 | 11550075900 |
| 7 | 80606017093632 |
| 8 | 2307293302418365718 |
| 9 | 268696321569450570148864 |
| 10 | 126770971088210751226430473604 |
| 11 | 241680859880056839468193961216049152 |
[1,2,14,256,18734,6932928,11550075900, 80606017093632,2307293302418365718, 268696321569450570148864, 126770971088210751226430473604, 241680859880056839468193961216049152] |