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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 6 |
| 5 | 10 |
| 6 | 17 |
| 7 | 30 |
| 8 | 51 |
| 9 | 88 |
| 10 | 152 |
| 11 | 261 |
| 12 | 450 |
| 13 | 775 |
| 14 | 1334 |
| 15 | 2298 |
| 16 | 3957 |
| 17 | 6814 |
| 18 | 11735 |
| 19 | 20208 |
| 20 | 34800 |
| 21 | 59929 |
| 22 | 103202 |
| 23 | 177723 |
| 24 | 306054 |
| 25 | 527050 |
| 26 | 907625 |
| 27 | 1563006 |
| 28 | 2691627 |
| 29 | 4635208 |
| 30 | 7982216 |
| 31 | 13746045 |
| 32 | 23671842 |
| 33 | 40764895 |
| 34 | 70200566 |
| 35 | 120891258 |
| 36 | 208184877 |
| 37 | 358511806 |
[0,1,2,3,6,10,17,30,51,88,152,261,450,775,1334, 2298,3957,6814,11735,20208,34800,59929,103202, 177723,306054,527050,907625,1563006,2691627, 4635208,7982216,13746045,23671842,40764895, 70200566,120891258,208184877,358511806] |