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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 3 |
| 5 | 2 |
| 6 | 7 |
| 7 | 7 |
| 8 | 14 |
| 9 | 23 |
| 10 | 35 |
| 11 | 56 |
| 12 | 94 |
| 13 | 155 |
| 14 | 243 |
| 15 | 402 |
| 16 | 614 |
| 17 | 1061 |
| 18 | 1656 |
| 19 | 2689 |
| 20 | 4295 |
| 21 | 6938 |
| 22 | 11176 |
| 23 | 18095 |
| 24 | 29102 |
| 25 | 46907 |
| 26 | 75703 |
| 27 | 122174 |
| 28 | 197494 |
| 29 | 317987 |
| 30 | 514611 |
| 31 | 829595 |
| 32 | 1340861 |
| 33 | 2166008 |
| 34 | 3497040 |
| 35 | 5645418 |
| 36 | 9120129 |
| 37 | 14733126 |
| 38 | 23803219 |
| 39 | 38460014 |
[0,1,1,3,2,7,7,14,23,35,56,94,155,243,402,614, 1061,1656,2689,4295,6938,11176,18095,29102,46907, 75703,122174,197494,317987,514611,829595,1340861, 2166008,3497040,5645418,9120129,14733126,23803219, 38460014] |