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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 8 |
| 3 | 61 |
| 4 | 5118 |
| 5 | 461665855 |
| 6 | 623226225881980511 |
| 7 | 414504377324573765293514801448728784 |
| 8 | 236902165576254773155426469727218731977450593637429985699626109166408392 |
[2,8,61,5118,461665855,623226225881980511, 414504377324573765293514801448728784, 23690216557625477315542646972721873197745059363742\ 9985699626109166408392] |