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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 6 |
| 5 | 11 |
| 6 | 20 |
| 7 | 38 |
| 8 | 71 |
| 9 | 132 |
| 10 | 247 |
| 11 | 461 |
| 12 | 861 |
| 13 | 1609 |
| 14 | 3005 |
| 15 | 5613 |
| 16 | 10485 |
| 17 | 19584 |
| 18 | 36581 |
| 19 | 68330 |
| 20 | 127632 |
| 21 | 238404 |
| 22 | 445314 |
| 23 | 831798 |
| 24 | 1553712 |
| 25 | 2902170 |
| 26 | 5420945 |
| 27 | 10125754 |
| 28 | 18913838 |
| 29 | 35329048 |
| 30 | 65990929 |
| 31 | 123264078 |
| 32 | 230244265 |
| 33 | 430071949 |
| 34 | 803328933 |
[1,2,3,6,11,20,38,71,132,247,461,861,1609,3005, 5613,10485,19584,36581,68330,127632,238404,445314, 831798,1553712,2902170,5420945,10125754,18913838, 35329048,65990929,123264078,230244265,430071949, 803328933] |