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| n | a(n) |
|---|---|
| 1 | 11 |
| 2 | 31 |
| 3 | 89 |
| 4 | 761 |
| 5 | 2251 |
| 6 | 6689 |
| 7 | 59561 |
| 8 | 14365291 |
| 9 | 10461401779 |
| 10 | 282437925089 |
| 11 | 150094669656737489 |
| 12 | 239299329512092506300739 |
| 13 | 2153693964201457673153371 |
| 14 | 107752636643058216783050887908587014548761 |
[11,31,89,761,2251,6689,59561,14365291, 10461401779,282437925089,150094669656737489, 239299329512092506300739, 2153693964201457673153371, 107752636643058216783050887908587014548761] |