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| n | a(n) |
|---|---|
| 4 | 719 |
| 5 | 5702399 |
| 6 | 889574399 |
| 7 | 50812489727999 |
| 8 | 17377871486975999 |
| 9 | 3693145248412139519999 |
| 10 | 1263108856248528850649087999999 |
| 11 | 1174691236311131831103651839999999 |
| 12 | 1966250441603763578045139940225843199999999 |
[719,5702399,889574399,50812489727999, 17377871486975999,3693145248412139519999, 1263108856248528850649087999999, 1174691236311131831103651839999999, 1966250441603763578045139940225843199999999] |