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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 1 |
| 9 | 1 |
| 10 | 1 |
| 11 | 1 |
| 12 | 1 |
| 13 | 3 |
| 14 | 3 |
| 15 | 11 |
| 16 | 11 |
| 17 | 27 |
| 18 | 27 |
| 19 | 63 |
| 20 | 63 |
| 21 | 285 |
| 22 | 285 |
[1,1,1,1,1,1,1,1,1,1,1,1,3,3,11,11,27,27,63,63, 285,285] |