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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 11 |
| 3 | 106 |
| 4 | 1277 |
| 5 | 18746 |
| 6 | 326587 |
| 7 | 6588338 |
| 8 | 150994937 |
| 9 | 3874204882 |
| 10 | 109999999991 |
| 11 | 3423740047322 |
| 12 | 115909305827317 |
| 13 | 4240251492291530 |
| 14 | 166680102383370227 |
| 15 | 7006302246093749986 |
| 16 | 313594649253062377457 |
| 17 | 14890324713954061755170 |
| 18 | 747581753430634213933039 |
| 19 | 39568393113206271782479562 |
[2,11,106,1277,18746,326587,6588338,150994937, 3874204882,109999999991,3423740047322, 115909305827317,4240251492291530, 166680102383370227,7006302246093749986, 313594649253062377457,14890324713954061755170, 747581753430634213933039, 39568393113206271782479562] |