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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 3 |
| 2 | 8 |
| 3 | 17 |
| 4 | 34 |
| 5 | 71 |
| 6 | 144 |
| 7 | 289 |
| 8 | 578 |
| 9 | 1147 |
| 10 | 2264 |
| 11 | 4449 |
| 12 | 8706 |
| 13 | 16975 |
| 14 | 32992 |
| 15 | 63937 |
| 16 | 123586 |
| 17 | 238323 |
| 18 | 458600 |
| 19 | 880753 |
| 20 | 1688482 |
| 21 | 3231639 |
| 22 | 6175728 |
| 23 | 11785313 |
| 24 | 22460802 |
| 25 | 42754283 |
| 26 | 81290424 |
| 27 | 154396097 |
| 28 | 292953858 |
| 29 | 555334047 |
| 30 | 1051781312 |
| 31 | 1990373249 |
| 32 | 3763583618 |
[2,3,8,17,34,71,144,289,578,1147,2264,4449,8706, 16975,32992,63937,123586,238323,458600,880753, 1688482,3231639,6175728,11785313,22460802, 42754283,81290424,154396097,292953858,555334047, 1051781312,1990373249,3763583618] |