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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 8 |
| 3 | 107 |
| 4 | 4059 |
| 5 | 131242 |
| 6 | 4803152 |
| 7 | 226886115 |
| 8 | 9004871354 |
| 9 | 404795616742 |
| 10 | 19130966325023 |
[1,8,107,4059,131242,4803152,226886115,9004871354, 404795616742,19130966325023] |