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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 7 |
| 6 | 11 |
| 7 | 29 |
| 8 | 47 |
| 9 | 128 |
| 10 | 214 |
| 11 | 594 |
| 12 | 1019 |
| 13 | 2861 |
| 14 | 5003 |
| 15 | 14173 |
| 16 | 25149 |
| 17 | 71758 |
| 18 | 128787 |
| 19 | 369671 |
| 20 | 669535 |
[1,1,2,3,7,11,29,47,128,214,594,1019,2861,5003, 14173,25149,71758,128787,369671,669535] |