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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 3 |
| 5 | 9 |
| 6 | 23 |
| 7 | 51 |
| 8 | 103 |
| 9 | 195 |
| 10 | 353 |
| 11 | 619 |
| 12 | 1061 |
| 13 | 1789 |
| 14 | 2981 |
| 15 | 4925 |
| 16 | 8087 |
| 17 | 13221 |
| 18 | 21547 |
| 19 | 35039 |
| 20 | 56891 |
| 21 | 92271 |
| 22 | 149541 |
| 23 | 242231 |
| 24 | 392233 |
| 25 | 634969 |
| 26 | 1027753 |
| 27 | 1663321 |
| 28 | 2691723 |
| 29 | 4355745 |
| 30 | 7048223 |
| 31 | 11404779 |
| 32 | 18453871 |
| 33 | 29859579 |
| 34 | 48314441 |
| 35 | 78175075 |
| 36 | 126490637 |
| 37 | 204666901 |
| 38 | 331158797 |
[1,1,1,1,3,9,23,51,103,195,353,619,1061,1789,2981, 4925,8087,13221,21547,35039,56891,92271,149541, 242231,392233,634969,1027753,1663321,2691723, 4355745,7048223,11404779,18453871,29859579, 48314441,78175075,126490637,204666901,331158797] |