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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 31 |
| 4 | 1327 |
| 5 | 170211 |
| 6 | 68333813 |
| 7 | 89675072255 |
| 8 | 397525147082217 |
| 9 | 6103188627225900995 |
| 10 | 331088233835064606501621 |
| 11 | 64490029272314754165301653295 |
| 12 | 45679131008965219349145151231118965 |
[1,1,3,31,1327,170211,68333813,89675072255, 397525147082217,6103188627225900995, 331088233835064606501621, 64490029272314754165301653295, 45679131008965219349145151231118965] |