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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 5 |
| 4 | 8 |
| 5 | 15 |
| 6 | 27 |
| 7 | 47 |
| 8 | 78 |
| 9 | 134 |
| 10 | 218 |
| 11 | 356 |
| 12 | 576 |
| 13 | 916 |
| 14 | 1449 |
| 15 | 2268 |
| 16 | 3525 |
| 17 | 5431 |
| 18 | 8324 |
| 19 | 12652 |
| 20 | 19129 |
| 21 | 28754 |
| 22 | 42974 |
| 23 | 63898 |
| 24 | 94553 |
| 25 | 139241 |
| 26 | 204144 |
| 27 | 298045 |
| 28 | 433328 |
| 29 | 627592 |
| 30 | 905560 |
| 31 | 1301934 |
| 32 | 1865362 |
| 33 | 2663816 |
| 34 | 3791813 |
| 35 | 5380911 |
| 36 | 7613286 |
| 37 | 10740839 |
| 38 | 15111141 |
| 39 | 21202615 |
[1,1,2,5,8,15,27,47,78,134,218,356,576,916,1449, 2268,3525,5431,8324,12652,19129,28754,42974,63898, 94553,139241,204144,298045,433328,627592,905560, 1301934,1865362,2663816,3791813,5380911,7613286, 10740839,15111141,21202615] |