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| n | a(n) |
|---|---|
| 1 | 4143102 |
| 2 | 225349124 |
| 3 | 18384097800 |
| 4 | 1253758820754 |
| 5 | 98979850888752 |
| 6 | 7109556887269900 |
| 7 | 555164681243665142 |
[4143102,225349124,18384097800,1253758820754, 98979850888752,7109556887269900, 555164681243665142] |