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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 13 |
| 3 | 28 |
| 4 | 56 |
| 5 | 102 |
| 6 | 179 |
| 7 | 305 |
| 8 | 511 |
| 9 | 846 |
| 10 | 1391 |
| 11 | 2274 |
| 12 | 3705 |
| 13 | 6022 |
| 14 | 9773 |
| 15 | 15844 |
| 16 | 25669 |
| 17 | 41568 |
| 18 | 67295 |
| 19 | 108924 |
| 20 | 176283 |
| 21 | 285274 |
| 22 | 461627 |
| 23 | 746974 |
| 24 | 1208678 |
| 25 | 1955732 |
| 26 | 3164493 |
| 27 | 5120311 |
| 28 | 8284893 |
| 29 | 13405296 |
| 30 | 21690284 |
| 31 | 35095678 |
| 32 | 56786063 |
| 33 | 91881845 |
| 34 | 148668015 |
| 35 | 240549970 |
[1,3,13,28,56,102,179,305,511,846,1391,2274,3705, 6022,9773,15844,25669,41568,67295,108924,176283, 285274,461627,746974,1208678,1955732,3164493, 5120311,8284893,13405296,21690284,35095678, 56786063,91881845,148668015,240549970] |