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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 7 |
| 4 | 16 |
| 5 | 36 |
| 6 | 79 |
| 7 | 170 |
| 8 | 362 |
| 9 | 768 |
| 10 | 1629 |
| 11 | 3458 |
| 12 | 7344 |
| 13 | 15590 |
| 14 | 33039 |
[1,3,7,16,36,79,170,362,768,1629,3458,7344,15590, 33039] |