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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 0 |
| 3 | 3 |
| 4 | 7 |
| 5 | 21 |
| 6 | 30 |
| 7 | 83 |
| 8 | 129 |
| 9 | 267 |
| 10 | 428 |
| 11 | 856 |
| 12 | 1332 |
| 13 | 2482 |
| 14 | 3909 |
| 15 | 6798 |
| 16 | 10853 |
| 17 | 18331 |
| 18 | 28665 |
| 19 | 47327 |
| 20 | 73829 |
| 21 | 118527 |
| 22 | 183898 |
| 23 | 290780 |
| 24 | 446508 |
| 25 | 695964 |
| 26 | 1061290 |
| 27 | 1631829 |
| 28 | 2470970 |
| 29 | 3759609 |
| 30 | 5646952 |
| 31 | 8512306 |
| 32 | 12700005 |
| 33 | 18972387 |
| 34 | 28120953 |
| 35 | 41690725 |
| 36 | 61392966 |
| 37 | 90379781 |
[1,1,0,3,7,21,30,83,129,267,428,856,1332,2482, 3909,6798,10853,18331,28665,47327,73829,118527, 183898,290780,446508,695964,1061290,1631829, 2470970,3759609,5646952,8512306,12700005,18972387, 28120953,41690725,61392966,90379781] |