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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| 10 | 1 |
| 11 | 2 |
| 12 | 4 |
| 13 | 7 |
| 14 | 13 |
| 15 | 21 |
| 16 | 36 |
| 17 | 56 |
| 18 | 89 |
| 19 | 135 |
| 20 | 207 |
| 21 | 305 |
| 22 | 453 |
| 23 | 656 |
| 24 | 950 |
| 25 | 1351 |
| 26 | 1922 |
| 27 | 2694 |
| 28 | 3772 |
| 29 | 5224 |
| 30 | 7218 |
| 31 | 9885 |
[0,0,0,0,0,0,0,0,0,0,1,2,4,7,13,21,36,56,89,135, 207,305,453,656,950,1351,1922,2694,3772,5224,7218, 9885] |