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| n | a(n) |
|---|---|
| 4 | 1 |
| 5 | 0 |
| 6 | 0 |
| 7 | 1 |
| 8 | 2 |
| 9 | 2 |
| 10 | 4 |
| 11 | 7 |
| 12 | 12 |
| 13 | 20 |
| 14 | 34 |
| 15 | 56 |
| 16 | 98 |
| 17 | 167 |
| 18 | 284 |
| 19 | 484 |
| 20 | 835 |
| 21 | 1433 |
| 22 | 2467 |
| 23 | 4250 |
| 24 | 7345 |
| 25 | 12700 |
| 26 | 22004 |
| 27 | 38154 |
| 28 | 66266 |
| 29 | 115224 |
| 30 | 200623 |
| 31 | 349654 |
| 32 | 610126 |
| 33 | 1065739 |
| 34 | 1863547 |
| 35 | 3261672 |
| 36 | 5714277 |
| 37 | 10020092 |
| 38 | 17586014 |
| 39 | 30890654 |
| 40 | 54305289 |
| 41 | 95542387 |
| 42 | 168221056 |
| 43 | 296401979 |
[1,0,0,1,2,2,4,7,12,20,34,56,98,167,284,484,835, 1433,2467,4250,7345,12700,22004,38154,66266, 115224,200623,349654,610126,1065739,1863547, 3261672,5714277,10020092,17586014,30890654, 54305289,95542387,168221056,296401979] |