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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
| 7 | 7 |
| 8 | 8 |
| 9 | 9 |
| 10 | 19 |
| 11 | 56 |
| 12 | 71 |
| 13 | 93 |
| 14 | 145 |
| 15 | 219 |
| 16 | 758 |
| 17 | 768 |
| 18 | 7584 |
| 19 | 7684 |
| 20 | 9696 |
| 21 | 10081 |
| 22 | 21993 |
| 23 | 40585 |
[1,2,3,4,5,6,7,8,9,19,56,71,93,145,219,758,768, 7584,7684,9696,10081,21993,40585] |