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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 3 |
| 7 | 4 |
| 8 | 7 |
| 9 | 11 |
| 10 | 18 |
| 11 | 30 |
| 12 | 48 |
| 13 | 78 |
| 14 | 126 |
| 15 | 203 |
| 16 | 329 |
| 17 | 532 |
| 18 | 861 |
| 19 | 1394 |
| 20 | 2255 |
| 21 | 3649 |
| 22 | 5904 |
| 23 | 9552 |
| 24 | 15456 |
| 25 | 25008 |
| 26 | 40464 |
| 27 | 65473 |
| 28 | 105937 |
| 29 | 171410 |
| 30 | 277347 |
| 31 | 448756 |
| 32 | 726103 |
| 33 | 1174859 |
| 34 | 1900962 |
| 35 | 3075822 |
| 36 | 4976784 |
| 37 | 8052606 |
| 38 | 13029390 |
| 39 | 21081995 |
| 40 | 34111385 |
| 41 | 55193380 |
[0,0,0,1,1,2,3,4,7,11,18,30,48,78,126,203,329,532, 861,1394,2255,3649,5904,9552,15456,25008,40464, 65473,105937,171410,277347,448756,726103,1174859, 1900962,3075822,4976784,8052606,13029390,21081995, 34111385,55193380] |