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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 9 |
| 3 | 24 |
| 4 | 37 |
| 5 | 81 |
| 6 | 133 |
| 7 | 256 |
| 8 | 413 |
| 9 | 746 |
| 10 | 1208 |
| 11 | 2098 |
| 12 | 3394 |
| 13 | 5753 |
| 14 | 9309 |
| 15 | 15532 |
| 16 | 25131 |
| 17 | 41499 |
| 18 | 67147 |
| 19 | 110122 |
| 20 | 178181 |
| 21 | 290890 |
| 22 | 470670 |
| 23 | 766068 |
| 24 | 1239524 |
| 25 | 2013407 |
| 26 | 3257761 |
| 27 | 5284656 |
| 28 | 8550753 |
[3,9,24,37,81,133,256,413,746,1208,2098,3394,5753, 9309,15532,25131,41499,67147,110122,178181,290890, 470670,766068,1239524,2013407,3257761,5284656, 8550753] |