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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 2 |
| 7 | 4 |
| 8 | 5 |
| 9 | 9 |
| 10 | 12 |
| 11 | 21 |
| 12 | 31 |
| 13 | 52 |
| 14 | 79 |
| 15 | 131 |
| 16 | 205 |
| 17 | 336 |
| 18 | 532 |
| 19 | 868 |
| 20 | 1388 |
| 21 | 2256 |
| 22 | 3623 |
| 23 | 5879 |
| 24 | 9471 |
| 25 | 15350 |
| 26 | 24769 |
| 27 | 40119 |
| 28 | 64809 |
| 29 | 104928 |
| 30 | 169606 |
| 31 | 274534 |
| 32 | 443935 |
| 33 | 718469 |
| 34 | 1162068 |
| 35 | 1880537 |
| 36 | 3042073 |
| 37 | 4922610 |
| 38 | 7963815 |
| 39 | 12886425 |
[1,0,1,1,2,2,4,5,9,12,21,31,52,79,131,205,336,532, 868,1388,2256,3623,5879,9471,15350,24769,40119, 64809,104928,169606,274534,443935,718469,1162068, 1880537,3042073,4922610,7963815,12886425] |