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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 105 |
| 3 | 7945 |
| 4 | 705263 |
| 5 | 66367192 |
| 6 | 6518500460 |
| 7 | 661357976129 |
| 8 | 68780790321431 |
| 9 | 7293552029780267 |
| 10 | 785674669296654053 |
[1,105,7945,705263,66367192,6518500460, 661357976129,68780790321431,7293552029780267, 785674669296654053] |