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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 11 |
| 3 | 78 |
| 4 | 627 |
| 5 | 5432 |
| 6 | 49464 |
| 7 | 466726 |
| 8 | 4522871 |
| 9 | 44747874 |
| 10 | 450127999 |
| 11 | 4589821576 |
| 12 | 47333631828 |
| 13 | 492836382192 |
| 14 | 5173697858508 |
| 15 | 54700317431958 |
| 16 | 581946708333055 |
| 17 | 6225343630256678 |
| 18 | 66921440314606905 |
| 19 | 722546760572660030 |
| 20 | 7832054418695360555 |
| 21 | 85198490262065775840 |
[1,2,11,78,627,5432,49464,466726,4522871,44747874, 450127999,4589821576,47333631828,492836382192, 5173697858508,54700317431958,581946708333055, 6225343630256678,66921440314606905, 722546760572660030,7832054418695360555, 85198490262065775840] |