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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 6 |
| 3 | 13 |
| 4 | 24 |
| 5 | 44 |
| 6 | 76 |
| 7 | 129 |
| 8 | 215 |
| 9 | 355 |
| 10 | 582 |
| 11 | 951 |
| 12 | 1548 |
| 13 | 2515 |
| 14 | 4080 |
| 15 | 6613 |
| 16 | 10712 |
| 17 | 17345 |
| 18 | 28078 |
| 19 | 45445 |
| 20 | 73546 |
| 21 | 119016 |
| 22 | 192588 |
| 23 | 311631 |
| 24 | 504247 |
| 25 | 815907 |
| 26 | 1320184 |
| 27 | 2136122 |
| 28 | 3456338 |
| 29 | 5592493 |
| 30 | 9048865 |
| 31 | 14641393 |
| 32 | 23690294 |
| 33 | 38331724 |
| 34 | 62022056 |
| 35 | 100353819 |
| 36 | 162375915 |
[1,3,6,13,24,44,76,129,215,355,582,951,1548,2515, 4080,6613,10712,17345,28078,45445,73546,119016, 192588,311631,504247,815907,1320184,2136122, 3456338,5592493,9048865,14641393,23690294, 38331724,62022056,100353819,162375915] |