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| n | a(n) |
|---|---|
| 1 | 9 |
| 2 | 449 |
| 3 | 17966 |
| 4 | 634241 |
| 5 | 24281566 |
| 6 | 906566345 |
| 7 | 33928210026 |
| 8 | 1276381991598 |
| 9 | 47878302949552 |
| 10 | 1796412252140585 |
| 11 | 67423941362664276 |
| 12 | 2530227381866900256 |
| 13 | 94953390054212557512 |
| 14 | 3563426148443173137440 |
| 15 | 133727820453911745380230 |
[9,449,17966,634241,24281566,906566345, 33928210026,1276381991598,47878302949552, 1796412252140585,67423941362664276, 2530227381866900256,94953390054212557512, 3563426148443173137440,133727820453911745380230] |