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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | 2 |
| 6 | 4 |
| 7 | 8 |
| 8 | 15 |
| 9 | 26 |
| 10 | 44 |
| 11 | 73 |
| 12 | 121 |
| 13 | 198 |
| 14 | 323 |
| 15 | 526 |
| 16 | 855 |
| 17 | 1387 |
| 18 | 2248 |
| 19 | 3641 |
| 20 | 5896 |
| 21 | 9544 |
| 22 | 15447 |
| 23 | 24999 |
| 24 | 40455 |
| 25 | 65463 |
| 26 | 105927 |
| 27 | 171399 |
| 28 | 277336 |
| 29 | 448745 |
| 30 | 726091 |
| 31 | 1174847 |
| 32 | 1900950 |
| 33 | 3075809 |
| 34 | 4976771 |
| 35 | 8052592 |
| 36 | 13029376 |
| 37 | 21081981 |
| 38 | 34111370 |
| 39 | 55193365 |
| 40 | 89304750 |
[0,0,0,0,1,2,4,8,15,26,44,73,121,198,323,526,855, 1387,2248,3641,5896,9544,15447,24999,40455,65463, 105927,171399,277336,448745,726091,1174847, 1900950,3075809,4976771,8052592,13029376,21081981, 34111370,55193365,89304750] |