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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 5 |
| 6 | 8 |
| 7 | 17 |
| 8 | 27 |
| 9 | 44 |
| 10 | 82 |
| 11 | 139 |
| 12 | 228 |
| 13 | 394 |
| 14 | 678 |
| 15 | 1136 |
| 16 | 1940 |
| 17 | 3339 |
| 18 | 5666 |
| 19 | 9647 |
| 20 | 16514 |
| 21 | 28128 |
| 22 | 47871 |
| 23 | 81714 |
| 24 | 139350 |
| 25 | 237399 |
| 26 | 404887 |
| 27 | 690570 |
| 28 | 1177098 |
| 29 | 2006935 |
| 30 | 3422404 |
| 31 | 5834717 |
| 32 | 9947619 |
| 33 | 16961832 |
| 34 | 28919798 |
| 35 | 49306740 |
| 36 | 84069972 |
| 37 | 143340887 |
| 38 | 244393124 |
| 39 | 416692340 |
[1,1,2,4,5,8,17,27,44,82,139,228,394,678,1136, 1940,3339,5666,9647,16514,28128,47871,81714, 139350,237399,404887,690570,1177098,2006935, 3422404,5834717,9947619,16961832,28919798, 49306740,84069972,143340887,244393124,416692340] |