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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 2 |
| 7 | 4 |
| 8 | 7 |
| 9 | 11 |
| 10 | 17 |
| 11 | 27 |
| 12 | 45 |
| 13 | 77 |
| 14 | 132 |
| 15 | 224 |
| 16 | 378 |
| 17 | 640 |
| 18 | 1093 |
| 19 | 1881 |
| 20 | 3250 |
| 21 | 5622 |
| 22 | 9732 |
| 23 | 16874 |
| 24 | 29332 |
| 25 | 51126 |
| 26 | 89313 |
| 27 | 156283 |
| 28 | 273842 |
| 29 | 480474 |
| 30 | 844220 |
| 31 | 1485472 |
| 32 | 2617335 |
| 33 | 4617243 |
| 34 | 8154289 |
| 35 | 14415869 |
| 36 | 25511256 |
| 37 | 45190366 |
| 38 | 80124434 |
| 39 | 142189496 |
[1,1,1,1,1,1,2,4,7,11,17,27,45,77,132,224,378,640, 1093,1881,3250,5622,9732,16874,29332,51126,89313, 156283,273842,480474,844220,1485472,2617335, 4617243,8154289,14415869,25511256,45190366, 80124434,142189496] |