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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 11 |
| 3 | 69 |
| 4 | 1843 |
| 5 | 12767 |
| 6 | 181215 |
| 7 | 1308365 |
| 8 | 76546627 |
| 9 | 565400891 |
| 10 | 8419185989 |
| 11 | 63092292851 |
| 12 | 1901486819127 |
| 13 | 14392588079947 |
| 14 | 218735248662407 |
| 15 | 1667806937019357 |
| 16 | 204072937168787299 |
| 17 | 1564753338846234067 |
| 18 | 24051971232321138025 |
| 19 | 185239367598020901335 |
| 20 | 5717329190017842492029 |
[1,11,69,1843,12767,181215,1308365,76546627, 565400891,8419185989,63092292851,1901486819127, 14392588079947,218735248662407,1667806937019357, 204072937168787299,1564753338846234067, 24051971232321138025,185239367598020901335, 5717329190017842492029] |