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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 3 |
| 3 | 4 |
| 4 | 6 |
| 5 | 9 |
| 6 | 14 |
| 7 | 23 |
| 8 | 39 |
| 9 | 67 |
| 10 | 118 |
| 11 | 211 |
| 12 | 381 |
| 13 | 696 |
| 14 | 1281 |
| 15 | 2372 |
| 16 | 4420 |
| 17 | 8275 |
| 18 | 15555 |
| 19 | 29352 |
| 20 | 55566 |
| 21 | 105495 |
| 22 | 200820 |
| 23 | 383181 |
| 24 | 732701 |
| 25 | 1403789 |
| 26 | 2694344 |
| 27 | 5179848 |
| 28 | 9973338 |
| 29 | 19229733 |
| 30 | 37125412 |
| 31 | 71762245 |
| 32 | 138871109 |
| 33 | 269021602 |
| 34 | 521666737 |
[1,2,3,4,6,9,14,23,39,67,118,211,381,696,1281, 2372,4420,8275,15555,29352,55566,105495,200820, 383181,732701,1403789,2694344,5179848,9973338, 19229733,37125412,71762245,138871109,269021602, 521666737] |