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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 24 |
| 3 | 362 |
| 4 | 3969 |
| 5 | 45288 |
| 6 | 532224 |
| 7 | 6187928 |
| 8 | 71851073 |
| 9 | 835579642 |
| 10 | 9715691800 |
| 11 | 112952196626 |
| 12 | 1313218423169 |
| 13 | 15268015911568 |
| 14 | 177510903321088 |
| 15 | 2063800528041456 |
| 16 | 23994446285179649 |
| 17 | 278967524405993266 |
[2,24,362,3969,45288,532224,6187928,71851073, 835579642,9715691800,112952196626,1313218423169, 15268015911568,177510903321088,2063800528041456, 23994446285179649,278967524405993266] |