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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 2243 |
| 4 | 1954 |
| 5 | 8798 |
| 6 | 32865944 |
| 7 | 131921 |
| 8 | 762433904 |
| 9 | 4641465428984 |
| 10 | 212594615488 |
| 11 | 1302317393264 |
| 12 | 7413941047079296 |
| 13 | 25240278679125376 |
| 14 | 4579921610967660032 |
| 15 | 12897123674403614072 |
| 16 | 8798331231517965002752 |
| 17 | 1689908720214734836736 |
| 18 | 1765127996286967623157194752 |
[1,2,2243,1954,8798,32865944,131921,762433904, 4641465428984,212594615488,1302317393264, 7413941047079296,25240278679125376, 4579921610967660032,12897123674403614072, 8798331231517965002752,1689908720214734836736, 1765127996286967623157194752] |