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| n | a(n) |
|---|---|
| 1 | 2688 |
| 2 | 304584 |
| 3 | 18242392 |
| 4 | 1188841336 |
| 5 | 77691779712 |
| 6 | 5075186680192 |
| 7 | 331658427568088 |
| 8 | 21671299631697840 |
| 9 | 1416043303932297408 |
| 10 | 92529833667730376464 |
| 11 | 6046241027601786546504 |
| 12 | 395082861406622455945776 |
[2688,304584,18242392,1188841336,77691779712, 5075186680192,331658427568088,21671299631697840, 1416043303932297408,92529833667730376464, 6046241027601786546504,395082861406622455945776] |