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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 10 |
| 5 | 17 |
| 6 | 34 |
| 7 | 60 |
| 8 | 120 |
| 9 | 217 |
| 10 | 434 |
| 11 | 798 |
| 12 | 1596 |
| 13 | 2970 |
| 14 | 5940 |
| 15 | 11154 |
| 16 | 22308 |
| 17 | 42185 |
| 18 | 84370 |
| 19 | 160446 |
| 20 | 320892 |
| 21 | 613054 |
| 22 | 1226108 |
| 23 | 2351440 |
| 24 | 4702880 |
| 25 | 9048522 |
| 26 | 18097044 |
| 27 | 34916300 |
| 28 | 69832600 |
| 29 | 135059220 |
| 30 | 270118440 |
| 31 | 523521630 |
| 32 | 1047043260 |
| 33 | 2033066025 |
| 34 | 4066132050 |
| 35 | 7908332190 |
[1,1,3,5,10,17,34,60,120,217,434,798,1596,2970, 5940,11154,22308,42185,84370,160446,320892,613054, 1226108,2351440,4702880,9048522,18097044,34916300, 69832600,135059220,270118440,523521630,1047043260, 2033066025,4066132050,7908332190] |