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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 325 |
| 2 | 52518 |
| 3 | 4173156 |
| 4 | 165533393 |
| 5 | 4118194905 |
| 6 | 73044448611 |
| 7 | 958018305487 |
| 8 | 9916013916442 |
| 9 | 84913600697770 |
[1,325,52518,4173156,165533393,4118194905, 73044448611,958018305487,9916013916442, 84913600697770] |