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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 8 |
| 3 | 17 |
| 4 | 39 |
| 5 | 80 |
| 6 | 167 |
| 7 | 337 |
| 8 | 682 |
| 9 | 1368 |
| 10 | 2745 |
| 11 | 5495 |
| 12 | 11000 |
| 13 | 22006 |
| 14 | 44024 |
| 15 | 88055 |
| 16 | 176123 |
| 17 | 352254 |
| 18 | 704522 |
| 19 | 1409053 |
| 20 | 2818121 |
| 21 | 5636252 |
| 22 | 11272520 |
| 23 | 22545051 |
| 24 | 45090119 |
| 25 | 90180250 |
| 26 | 180360518 |
[1,2,8,17,39,80,167,337,682,1368,2745,5495,11000, 22006,44024,88055,176123,352254,704522,1409053, 2818121,5636252,11272520,22545051,45090119, 90180250,180360518] |