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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 2 |
| 7 | 3 |
| 8 | 4 |
| 9 | 7 |
| 10 | 11 |
| 11 | 17 |
| 12 | 28 |
| 13 | 46 |
| 14 | 74 |
| 15 | 124 |
| 16 | 206 |
| 17 | 343 |
| 18 | 577 |
| 19 | 976 |
| 20 | 1649 |
| 21 | 2808 |
| 22 | 4792 |
| 23 | 8200 |
| 24 | 14073 |
| 25 | 24228 |
| 26 | 41782 |
| 27 | 72246 |
| 28 | 125164 |
| 29 | 217262 |
| 30 | 377784 |
| 31 | 658072 |
| 32 | 1148006 |
| 33 | 2005743 |
| 34 | 3509125 |
| 35 | 6147422 |
| 36 | 10782375 |
| 37 | 18934209 |
| 38 | 33285291 |
| 39 | 58575080 |
| 40 | 103181405 |
| 41 | 181928014 |
| 42 | 321059155 |
[1,0,1,1,1,2,3,4,7,11,17,28,46,74,124,206,343,577, 976,1649,2808,4792,8200,14073,24228,41782,72246, 125164,217262,377784,658072,1148006,2005743, 3509125,6147422,10782375,18934209,33285291, 58575080,103181405,181928014,321059155] |