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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 450 |
| 3 | 18365 |
| 4 | 724165 |
| 5 | 29114990 |
| 6 | 1170734982 |
| 7 | 47042626155 |
| 8 | 1890308500802 |
| 9 | 75958861124241 |
| 10 | 3052275114812686 |
| 11 | 122650349309393222 |
| 12 | 4928490505750268888 |
| 13 | 198042801955605338784 |
| 14 | 7958004855043245830095 |
| 15 | 319778556203277719530004 |
[5,450,18365,724165,29114990,1170734982, 47042626155,1890308500802,75958861124241, 3052275114812686,122650349309393222, 4928490505750268888,198042801955605338784, 7958004855043245830095,319778556203277719530004] |