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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 5 |
| 6 | 8 |
| 7 | 11 |
| 8 | 19 |
| 9 | 30 |
| 10 | 41 |
| 11 | 71 |
| 12 | 112 |
| 13 | 153 |
| 14 | 265 |
| 15 | 418 |
| 16 | 571 |
| 17 | 989 |
| 18 | 1560 |
| 19 | 2131 |
| 20 | 3691 |
| 21 | 5822 |
| 22 | 7953 |
| 23 | 13775 |
| 24 | 21728 |
| 25 | 29681 |
| 26 | 51409 |
| 27 | 81090 |
| 28 | 110771 |
| 29 | 191861 |
| 30 | 302632 |
| 31 | 413403 |
| 32 | 716035 |
| 33 | 1129438 |
| 34 | 1542841 |
| 35 | 2672279 |
| 36 | 4215120 |
| 37 | 5757961 |
| 38 | 9973081 |
| 39 | 15731042 |
| 40 | 21489003 |
| 41 | 37220045 |
[0,1,1,2,3,5,8,11,19,30,41,71,112,153,265,418,571, 989,1560,2131,3691,5822,7953,13775,21728,29681, 51409,81090,110771,191861,302632,413403,716035, 1129438,1542841,2672279,4215120,5757961,9973081, 15731042,21489003,37220045] |