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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 10 |
| 2 | 102 |
| 3 | 1086 |
| 4 | 11899 |
| 5 | 132885 |
| 6 | 1504068 |
| 7 | 17193516 |
| 8 | 198048061 |
| 9 | 2295079168 |
| 10 | 26727127205 |
| 11 | 312513034302 |
| 12 | 3666620879703 |
| 13 | 43144771987875 |
| 14 | 508957616798605 |
| 15 | 6017090458256401 |
| 16 | 71273551528056549 |
| 17 | 845691881456979030 |
| 18 | 10049815922281625560 |
| 19 | 119591059353652383362 |
| 20 | 1424873411908463345057 |
[1,10,102,1086,11899,132885,1504068,17193516, 198048061,2295079168,26727127205,312513034302, 3666620879703,43144771987875,508957616798605, 6017090458256401,71273551528056549, 845691881456979030,10049815922281625560, 119591059353652383362,1424873411908463345057] |