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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 61 |
| 2 | 4621 |
| 3 | 369181 |
| 4 | 29821741 |
| 5 | 2414250301 |
| 6 | 195533302861 |
| 7 | 15837861987421 |
| 8 | 1282861452271981 |
| 9 | 103911691734684541 |
| 10 | 8416845656119913101 |
| 11 | 681764476155480405661 |
| 12 | 55222922216750191970221 |
[1,61,4621,369181,29821741,2414250301, 195533302861,15837861987421,1282861452271981, 103911691734684541,8416845656119913101, 681764476155480405661,55222922216750191970221] |