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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 36 |
| 4 | 586 |
| 5 | 37944 |
| 6 | 3835792 |
| 7 | 1104367784 |
| 8 | 619684261316 |
| 9 | 861640042953968 |
| 10 | 2553753667566404176 |
| 11 | 17730379458709838261420 |
| 12 | 271886420146092794204826516 |
| 13 | 9552041362065797908250895398960 |
| 14 | 751574042423604397352344101718881740 |
[1,2,36,586,37944,3835792,1104367784,619684261316, 861640042953968,2553753667566404176, 17730379458709838261420, 271886420146092794204826516, 9552041362065797908250895398960, 751574042423604397352344101718881740] |