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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 9 |
| 3 | 18 |
| 4 | 34 |
| 5 | 60 |
| 6 | 104 |
| 7 | 175 |
| 8 | 291 |
| 9 | 479 |
| 10 | 784 |
| 11 | 1278 |
| 12 | 2078 |
| 13 | 3373 |
| 14 | 5470 |
| 15 | 8863 |
| 16 | 14354 |
| 17 | 23239 |
| 18 | 37616 |
| 19 | 60879 |
| 20 | 98520 |
| 21 | 159425 |
| 22 | 257972 |
| 23 | 417425 |
| 24 | 675426 |
| 25 | 1092881 |
| 26 | 1768338 |
| 27 | 2861251 |
| 28 | 4629622 |
| 29 | 7490908 |
| 30 | 12120566 |
| 31 | 19611511 |
| 32 | 31732115 |
| 33 | 51343665 |
| 34 | 83075820 |
| 35 | 134419526 |
| 36 | 217495388 |
[1,3,9,18,34,60,104,175,291,479,784,1278,2078, 3373,5470,8863,14354,23239,37616,60879,98520, 159425,257972,417425,675426,1092881,1768338, 2861251,4629622,7490908,12120566,19611511, 31732115,51343665,83075820,134419526,217495388] |