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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 7 |
| 6 | 12 |
| 7 | 19 |
| 8 | 26 |
| 9 | 45 |
| 10 | 71 |
| 11 | 97 |
| 12 | 168 |
| 13 | 265 |
| 14 | 362 |
| 15 | 627 |
| 16 | 989 |
| 17 | 1351 |
| 18 | 2340 |
| 19 | 3691 |
| 20 | 5042 |
| 21 | 8733 |
| 22 | 13775 |
| 23 | 18817 |
| 24 | 32592 |
| 25 | 51409 |
| 26 | 70226 |
| 27 | 121635 |
| 28 | 191861 |
| 29 | 262087 |
| 30 | 453948 |
| 31 | 716035 |
| 32 | 978122 |
| 33 | 1694157 |
| 34 | 2672279 |
| 35 | 3650401 |
| 36 | 6322680 |
| 37 | 9973081 |
| 38 | 13623482 |
| 39 | 23596563 |
| 40 | 37220045 |
[1,2,3,5,7,12,19,26,45,71,97,168,265,362,627,989, 1351,2340,3691,5042,8733,13775,18817,32592,51409, 70226,121635,191861,262087,453948,716035,978122, 1694157,2672279,3650401,6322680,9973081,13623482, 23596563,37220045] |