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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 15 |
| 6 | 28 |
| 7 | 41 |
| 8 | 71 |
| 9 | 89 |
| 10 | 644 |
| 11 | 969 |
| 12 | 2129 |
| 13 | 6380 |
| 14 | 9684 |
| 15 | 10016 |
| 16 | 10055 |
| 17 | 160584 |
[1,2,3,5,15,28,41,71,89,644,969,2129,6380,9684, 10016,10055,160584] |