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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 11 |
| 3 | 141 |
| 4 | 1931 |
| 5 | 27437 |
| 6 | 399067 |
| 7 | 5898717 |
| 8 | 88222507 |
| 9 | 1331336717 |
| 10 | 20232408443 |
| 11 | 309216796733 |
| 12 | 4747834841803 |
| 13 | 73183422791533 |
| 14 | 1131766137398043 |
| 15 | 17551887415384989 |
| 16 | 272866603309799019 |
| 17 | 4251115355896874189 |
[1,11,141,1931,27437,399067,5898717,88222507, 1331336717,20232408443,309216796733,4747834841803, 73183422791533,1131766137398043,17551887415384989, 272866603309799019,4251115355896874189] |