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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 2 |
| 2 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 8 |
| 6 | 12 |
| 7 | 19 |
| 8 | 30 |
| 9 | 49 |
| 10 | 78 |
| 11 | 126 |
| 12 | 204 |
| 13 | 330 |
| 14 | 534 |
| 15 | 863 |
| 16 | 1396 |
| 17 | 2259 |
| 18 | 3655 |
| 19 | 5913 |
| 20 | 9568 |
| 21 | 15480 |
| 22 | 25048 |
| 23 | 40528 |
| 24 | 65575 |
| 25 | 106102 |
| 26 | 171676 |
| 27 | 277777 |
| 28 | 449453 |
| 29 | 727230 |
| 30 | 1176683 |
| 31 | 1903912 |
| 32 | 3080595 |
| 33 | 4984507 |
| 34 | 8065101 |
| 35 | 13049607 |
| 36 | 21114707 |
| 37 | 34164313 |
| 38 | 55279019 |
| 39 | 89443332 |
[0,2,2,3,5,8,12,19,30,49,78,126,204,330,534,863, 1396,2259,3655,5913,9568,15480,25048,40528,65575, 106102,171676,277777,449453,727230,1176683, 1903912,3080595,4984507,8065101,13049607,21114707, 34164313,55279019,89443332] |