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| n | a(n) |
|---|---|
| 4 | 13 |
| 5 | 20 |
| 6 | 32 |
| 7 | 51 |
| 8 | 81 |
| 9 | 128 |
| 10 | 201 |
| 11 | 316 |
| 12 | 497 |
| 13 | 781 |
| 14 | 1227 |
| 15 | 1927 |
| 16 | 3026 |
| 17 | 4752 |
| 18 | 7462 |
| 19 | 11717 |
| 20 | 18398 |
| 21 | 28888 |
| 22 | 45359 |
| 23 | 71221 |
| 24 | 111828 |
| 25 | 175587 |
| 26 | 275698 |
| 27 | 432887 |
| 28 | 679697 |
| 29 | 1067225 |
| 30 | 1675701 |
| 31 | 2631098 |
| 32 | 4131212 |
| 33 | 6486612 |
| 34 | 10184937 |
| 35 | 15991852 |
| 36 | 25109564 |
| 37 | 39425715 |
| 38 | 61904181 |
[13,20,32,51,81,128,201,316,497,781,1227,1927, 3026,4752,7462,11717,18398,28888,45359,71221, 111828,175587,275698,432887,679697,1067225, 1675701,2631098,4131212,6486612,10184937,15991852, 25109564,39425715,61904181] |