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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 300 |
| 3 | 903 |
| 4 | 990 |
| 5 | 3003 |
| 6 | 33930 |
| 7 | 39903 |
| 8 | 339900 |
| 9 | 930930 |
| 10 | 39033030 |
| 11 | 990903903 |
| 12 | 3909003990 |
| 13 | 3993990000 |
| 14 | 33003300903 |
| 15 | 39999939903 |
| 16 | 90993993300 |
| 17 | 3390003090090 |
| 18 | 99990099000330 |
| 19 | 90009933903093903 |
| 20 | 399939399933939330 |
| 21 | 303300903903330099003 |
| 22 | 3309000900300303999300 |
[3,300,903,990,3003,33930,39903,339900,930930, 39033030,990903903,3909003990,3993990000, 33003300903,39999939903,90993993300,3390003090090, 99990099000330,90009933903093903, 399939399933939330,303300903903330099003, 3309000900300303999300] |