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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 5 |
| 6 | 7 |
| 7 | 11 |
| 8 | 16 |
| 9 | 24 |
| 10 | 36 |
| 11 | 54 |
| 12 | 81 |
| 13 | 122 |
| 14 | 183 |
| 15 | 275 |
| 16 | 413 |
| 17 | 620 |
| 18 | 931 |
| 19 | 1398 |
| 20 | 2099 |
| 21 | 3152 |
| 22 | 4733 |
| 23 | 7107 |
| 24 | 10672 |
| 25 | 16025 |
| 26 | 24063 |
| 27 | 36133 |
| 28 | 54257 |
| 29 | 81472 |
| 30 | 122338 |
| 31 | 183702 |
| 32 | 275846 |
| 33 | 414209 |
| 34 | 621974 |
| 35 | 933953 |
| 36 | 1402419 |
| 37 | 2105865 |
| 38 | 3162156 |
| 39 | 4748277 |
| 40 | 7129988 |
| 41 | 10706353 |
[0,1,1,2,3,5,7,11,16,24,36,54,81,122,183,275,413, 620,931,1398,2099,3152,4733,7107,10672,16025, 24063,36133,54257,81472,122338,183702,275846, 414209,621974,933953,1402419,2105865,3162156, 4748277,7129988,10706353] |