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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 6 |
| 5 | 11 |
| 6 | 18 |
| 7 | 31 |
| 8 | 52 |
| 9 | 91 |
| 10 | 155 |
| 11 | 268 |
| 12 | 464 |
| 13 | 802 |
| 14 | 1390 |
| 15 | 2411 |
| 16 | 4178 |
| 17 | 7249 |
| 18 | 12578 |
| 19 | 21823 |
| 20 | 37870 |
| 21 | 65724 |
| 22 | 114061 |
| 23 | 197960 |
| 24 | 343578 |
| 25 | 596317 |
| 26 | 1034983 |
| 27 | 1796359 |
| 28 | 3117837 |
| 29 | 5411478 |
| 30 | 9392460 |
| 31 | 16302081 |
| 32 | 28294850 |
| 33 | 49110242 |
| 34 | 85238716 |
| 35 | 147945552 |
| 36 | 256783448 |
| 37 | 445689300 |
[1,2,4,6,11,18,31,52,91,155,268,464,802,1390,2411, 4178,7249,12578,21823,37870,65724,114061,197960, 343578,596317,1034983,1796359,3117837,5411478, 9392460,16302081,28294850,49110242,85238716, 147945552,256783448,445689300] |