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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 2 |
| 6 | 4 |
| 7 | 7 |
| 8 | 13 |
| 9 | 23 |
| 10 | 39 |
| 11 | 69 |
| 12 | 122 |
| 13 | 211 |
| 14 | 339 |
| 15 | 564 |
| 16 | 1001 |
| 17 | 1764 |
| 18 | 2630 |
| 19 | 4565 |
| 20 | 7192 |
| 21 | 10151 |
| 22 | 17202 |
| 23 | 26152 |
| 24 | 43543 |
| 25 | 79126 |
| 26 | 117496 |
| 27 | 156229 |
| 28 | 227302 |
| 29 | 295011 |
| 30 | 422040 |
| 31 | 1004905 |
| 32 | 1423445 |
| 33 | 2210752 |
| 34 | 2796140 |
| 35 | 5225780 |
| 36 | 6546101 |
| 37 | 9921635 |
| 38 | 14947534 |
[0,1,1,2,2,4,7,13,23,39,69,122,211,339,564,1001, 1764,2630,4565,7192,10151,17202,26152,43543,79126, 117496,156229,227302,295011,422040,1004905, 1423445,2210752,2796140,5225780,6546101,9921635, 14947534] |