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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 411 |
| 3 | 17031 |
| 4 | 1566319 |
| 5 | 109797321 |
| 6 | 8964073263 |
| 7 | 697824874477 |
| 8 | 56238345975057 |
| 9 | 4510071758583443 |
| 10 | 365508148420971423 |
| 11 | 29684298137697156807 |
| 12 | 2422133463372341456079 |
| 13 | 198166150735435791683617 |
[1,411,17031,1566319,109797321,8964073263, 697824874477,56238345975057,4510071758583443, 365508148420971423,29684298137697156807, 2422133463372341456079,198166150735435791683617] |