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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 2 |
| 6 | 3 |
| 7 | 5 |
| 8 | 8 |
| 9 | 12 |
| 10 | 20 |
| 11 | 32 |
| 12 | 58 |
| 13 | 94 |
| 14 | 169 |
| 15 | 289 |
| 16 | 526 |
| 17 | 910 |
| 18 | 1667 |
| 19 | 2934 |
| 20 | 5448 |
| 21 | 9686 |
| 22 | 18084 |
| 23 | 32540 |
| 24 | 61108 |
| 25 | 110780 |
| 26 | 208960 |
| 27 | 381676 |
| 28 | 723354 |
| 29 | 1328980 |
| 30 | 2527074 |
| 31 | 4669367 |
| 32 | 8908546 |
| 33 | 16535154 |
| 34 | 31630390 |
| 35 | 58965214 |
| 36 | 113093022 |
| 37 | 211591218 |
| 38 | 406680465 |
| 39 | 763535450 |
| 40 | 1470597342 |
| 41 | 2769176514 |
| 42 | 5342750699 |
| 43 | 10089240974 |
[1,1,1,1,2,2,3,5,8,12,20,32,58,94,169,289,526,910, 1667,2934,5448,9686,18084,32540,61108,110780, 208960,381676,723354,1328980,2527074,4669367, 8908546,16535154,31630390,58965214,113093022, 211591218,406680465,763535450,1470597342, 2769176514,5342750699,10089240974] |