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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 4 |
| 4 | 7 |
| 5 | 14 |
| 6 | 22 |
| 7 | 23 |
| 8 | 38 |
| 9 | 43 |
| 10 | 44 |
| 11 | 48 |
| 12 | 97 |
| 13 | 150 |
| 14 | 243 |
| 15 | 443 |
| 16 | 444 |
| 17 | 667 |
| 18 | 668 |
| 19 | 1244 |
| 20 | 2443 |
| 21 | 4443 |
| 22 | 4444 |
[1,3,4,7,14,22,23,38,43,44,48,97,150,243,443,444, 667,668,1244,2443,4443,4444] |