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| n | a(n) |
|---|---|
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 5 |
| 6 | 9 |
| 7 | 15 |
| 8 | 27 |
| 9 | 46 |
| 10 | 83 |
| 11 | 143 |
| 12 | 259 |
| 13 | 450 |
| 14 | 817 |
| 15 | 1429 |
| 16 | 2599 |
| 17 | 4570 |
| 18 | 8323 |
| 19 | 14698 |
| 20 | 26797 |
| 21 | 47491 |
| 22 | 86659 |
| 23 | 154042 |
| 24 | 281287 |
| 25 | 501283 |
| 26 | 915907 |
| 27 | 1635835 |
| 28 | 2990383 |
| 29 | 5351138 |
| 30 | 9786369 |
| 31 | 17541671 |
| 32 | 32092959 |
| 33 | 57610988 |
| 34 | 105435607 |
| 35 | 189521640 |
| 36 | 346950321 |
| 37 | 624389105 |
[1,2,3,5,9,15,27,46,83,143,259,450,817,1429,2599, 4570,8323,14698,26797,47491,86659,154042,281287, 501283,915907,1635835,2990383,5351138,9786369, 17541671,32092959,57610988,105435607,189521640, 346950321,624389105] |