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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 876 |
| 3 | 11405 |
| 4 | 88808 |
| 5 | 3075264 |
| 6 | 66289769 |
| 7 | 978288822 |
| 8 | 19677228473 |
| 9 | 410226893539 |
| 10 | 7428573953424 |
| 11 | 139931054756836 |
| 12 | 2750243232989133 |
| 13 | 52290968094715743 |
| 14 | 990034495588191380 |
| 15 | 19031260437956001426 |
| 16 | 364274317770524751427 |
[1,876,11405,88808,3075264,66289769,978288822, 19677228473,410226893539,7428573953424, 139931054756836,2750243232989133, 52290968094715743,990034495588191380, 19031260437956001426,364274317770524751427] |