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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 17 |
| 3 | 746 |
| 4 | 66442 |
| 5 | 9843731 |
| 6 | 2187951485 |
| 7 | 680615166718 |
| 8 | 282199710311343 |
| 9 | 150389915850565698 |
| 10 | 100155578811552469018 |
| 11 | 81505577529171038120173 |
| 12 | 79580089696277797740768316 |
| 13 | 91814299717377746850767747558 |
[1,1,17,746,66442,9843731,2187951485,680615166718, 282199710311343,150389915850565698, 100155578811552469018,81505577529171038120173, 79580089696277797740768316, 91814299717377746850767747558] |