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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 8 |
| 5 | 16 |
| 6 | 48 |
| 7 | 116 |
| 8 | 341 |
| 9 | 928 |
| 10 | 2753 |
| 11 | 7996 |
| 12 | 24254 |
| 13 | 73325 |
| 14 | 226471 |
| 15 | 702122 |
[1,2,3,8,16,48,116,341,928,2753,7996,24254,73325, 226471,702122] |