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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 4 |
| 4 | 4 |
| 5 | 7 |
| 6 | 16 |
| 7 | 19 |
| 8 | 37 |
| 9 | 67 |
| 10 | 94 |
| 11 | 178 |
| 12 | 295 |
| 13 | 460 |
| 14 | 829 |
| 15 | 1345 |
| 16 | 2209 |
| 17 | 3832 |
| 18 | 6244 |
| 19 | 10459 |
| 20 | 17740 |
| 21 | 29191 |
| 22 | 49117 |
| 23 | 82411 |
| 24 | 136690 |
| 25 | 229762 |
| 26 | 383923 |
| 27 | 639832 |
| 28 | 1073209 |
| 29 | 1791601 |
| 30 | 2992705 |
| 31 | 5011228 |
| 32 | 8367508 |
| 33 | 13989343 |
| 34 | 23401192 |
| 35 | 39091867 |
| 36 | 65369221 |
| 37 | 109295443 |
[1,1,1,4,4,7,16,19,37,67,94,178,295,460,829,1345, 2209,3832,6244,10459,17740,29191,49117,82411, 136690,229762,383923,639832,1073209,1791601, 2992705,5011228,8367508,13989343,23401192, 39091867,65369221,109295443] |