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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 3 |
| 5 | 4 |
| 6 | 6 |
| 7 | 9 |
| 8 | 15 |
| 9 | 23 |
| 10 | 36 |
| 11 | 55 |
| 12 | 87 |
| 13 | 136 |
| 14 | 212 |
| 15 | 329 |
| 16 | 515 |
| 17 | 802 |
| 18 | 1251 |
| 19 | 1949 |
| 20 | 3043 |
| 21 | 4745 |
| 22 | 7401 |
| 23 | 11535 |
| 24 | 17994 |
| 25 | 28063 |
| 26 | 43766 |
| 27 | 68243 |
| 28 | 106433 |
| 29 | 165981 |
| 30 | 258854 |
| 31 | 403670 |
| 32 | 629530 |
| 33 | 981750 |
| 34 | 1531055 |
| 35 | 2387660 |
| 36 | 3723569 |
| 37 | 5806905 |
| 38 | 9055889 |
| 39 | 14122638 |
| 40 | 22024291 |
| 41 | 34346886 |
[1,1,1,1,3,4,6,9,15,23,36,55,87,136,212,329,515, 802,1251,1949,3043,4745,7401,11535,17994,28063, 43766,68243,106433,165981,258854,403670,629530, 981750,1531055,2387660,3723569,5806905,9055889, 14122638,22024291,34346886] |