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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 3 |
| 4 | 2 |
| 5 | 6 |
| 6 | 9 |
| 7 | 15 |
| 8 | 22 |
| 9 | 41 |
| 10 | 68 |
| 11 | 118 |
| 12 | 199 |
| 13 | 337 |
| 14 | 571 |
| 15 | 982 |
| 16 | 1677 |
| 17 | 2860 |
| 18 | 4866 |
| 19 | 8284 |
| 20 | 14084 |
| 21 | 23911 |
| 22 | 40544 |
| 23 | 68679 |
| 24 | 116172 |
| 25 | 196249 |
| 26 | 331096 |
| 27 | 557927 |
| 28 | 939008 |
| 29 | 1578450 |
| 30 | 2650167 |
| 31 | 4444505 |
| 32 | 7445658 |
| 33 | 12460248 |
| 34 | 20830822 |
| 35 | 34790302 |
| 36 | 58049613 |
| 37 | 96771364 |
| 38 | 161182065 |
[1,1,3,2,6,9,15,22,41,68,118,199,337,571,982,1677, 2860,4866,8284,14084,23911,40544,68679,116172, 196249,331096,557927,939008,1578450,2650167, 4444505,7445658,12460248,20830822,34790302, 58049613,96771364,161182065] |