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| n | a(n) |
|---|---|
| 6 | 1 |
| 7 | 233017 |
| 8 | 62053592185 |
| 9 | 16235267484138105 |
| 10 | 4257017266254230145657 |
| 11 | 1115917479276007905665796729 |
| 12 | 292532187604809092430760283523705 |
| 13 | 76685521221108550544352295253436844665 |
[1,233017,62053592185,16235267484138105, 4257017266254230145657, 1115917479276007905665796729, 292532187604809092430760283523705, 76685521221108550544352295253436844665] |