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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 10 |
| 2 | 199 |
| 3 | 3970 |
| 4 | 79201 |
| 5 | 1580050 |
| 6 | 31521799 |
| 7 | 628855930 |
| 8 | 12545596801 |
| 9 | 250283080090 |
| 10 | 4993116004999 |
| 11 | 99612037019890 |
| 12 | 1987247624392801 |
| 13 | 39645340450836130 |
| 14 | 790919561392329799 |
| 15 | 15778745887395759850 |
| 16 | 314783998186522867201 |
| 17 | 6279901217843061584170 |
[1,10,199,3970,79201,1580050,31521799,628855930, 12545596801,250283080090,4993116004999, 99612037019890,1987247624392801,39645340450836130, 790919561392329799,15778745887395759850, 314783998186522867201,6279901217843061584170] |