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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 82 |
| 3 | 818 |
| 4 | 17947 |
| 5 | 383910 |
| 6 | 8417922 |
| 7 | 185389115 |
| 8 | 4094434997 |
| 9 | 90512430926 |
| 10 | 2001749650686 |
| 11 | 44277953110500 |
| 12 | 979481824603856 |
| 13 | 21667974875091016 |
| 14 | 479342236614803683 |
| 15 | 10604136569952695750 |
| 16 | 234588036917706798440 |
[1,82,818,17947,383910,8417922,185389115, 4094434997,90512430926,2001749650686, 44277953110500,979481824603856,21667974875091016, 479342236614803683,10604136569952695750, 234588036917706798440] |