| n | a(n) |
|---|---|
| 1 | 9 |
| 2 | 2209 |
| 3 | 29929 |
| 4 | 299209 |
| 5 | 2900209 |
| 6 | 290200922209 |
| 7 | 2999229009299090209220929 |
| 8 | 9009222020020222999909020009 |
| 9 | 9290090909029029202290909290992929 |
| 10 | 22922009029909029220029029909020009 |
[9,2209,29929,299209,2900209,290200922209, 2999229009299090209220929, 9009222020020222999909020009, 9290090909029029202290909290992929, 22922009029909029220029029909020009] |