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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 7 |
| 6 | 12 |
| 7 | 17 |
| 8 | 28 |
| 9 | 43 |
| 10 | 67 |
| 11 | 103 |
| 12 | 162 |
| 13 | 245 |
| 14 | 374 |
| 15 | 569 |
| 16 | 854 |
| 17 | 1278 |
| 18 | 1902 |
| 19 | 2816 |
| 20 | 4148 |
| 21 | 6087 |
| 22 | 8881 |
| 23 | 12926 |
| 24 | 18726 |
| 25 | 27042 |
[1,1,2,3,5,7,12,17,28,43,67,103,162,245,374,569, 854,1278,1902,2816,4148,6087,8881,12926,18726, 27042] |