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| n | a(n) |
|---|---|
| 4 | 13 |
| 5 | 22 |
| 6 | 38 |
| 7 | 66 |
| 8 | 113 |
| 9 | 193 |
| 10 | 331 |
| 11 | 568 |
| 12 | 974 |
| 13 | 1669 |
| 14 | 2861 |
| 15 | 4905 |
| 16 | 8409 |
| 17 | 14415 |
| 18 | 24711 |
| 19 | 42362 |
| 20 | 72621 |
| 21 | 124493 |
| 22 | 213416 |
| 23 | 365856 |
| 24 | 627182 |
| 25 | 1075169 |
| 26 | 1843146 |
| 27 | 3159678 |
| 28 | 5416590 |
| 29 | 9285581 |
| 30 | 15918135 |
| 31 | 27288225 |
| 32 | 46779804 |
| 33 | 80193932 |
| 34 | 137475281 |
| 35 | 235671857 |
[13,22,38,66,113,193,331,568,974,1669,2861,4905, 8409,14415,24711,42362,72621,124493,213416,365856, 627182,1075169,1843146,3159678,5416590,9285581, 15918135,27288225,46779804,80193932,137475281, 235671857] |