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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 202 |
| 2 | 22022 |
| 3 | 2220222 |
| 4 | 222202222 |
| 5 | 22222022222 |
| 6 | 2222220222222 |
| 7 | 222222202222222 |
| 8 | 22222222022222222 |
| 9 | 2222222220222222222 |
| 10 | 222222222202222222222 |
| 11 | 22222222222022222222222 |
| 12 | 2222222222220222222222222 |
| 13 | 222222222222202222222222222 |
| 14 | 22222222222222022222222222222 |
| 15 | 2222222222222220222222222222222 |
[0,202,22022,2220222,222202222,22222022222, 2222220222222,222222202222222,22222222022222222, 2222222220222222222,222222222202222222222, 22222222222022222222222,2222222222220222222222222, 222222222222202222222222222, 22222222222222022222222222222, 2222222222222220222222222222222] |