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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 3 |
| 3 | 5 |
| 4 | 7 |
| 5 | 13 |
| 6 | 20 |
| 7 | 36 |
| 8 | 57 |
| 9 | 108 |
| 10 | 185 |
| 11 | 355 |
| 12 | 637 |
| 13 | 1246 |
| 14 | 2344 |
| 15 | 4595 |
| 16 | 8895 |
| 17 | 17532 |
| 18 | 34592 |
| 19 | 68287 |
| 20 | 136053 |
| 21 | 269046 |
| 22 | 539516 |
| 23 | 1068111 |
| 24 | 2147477 |
| 25 | 4254870 |
| 26 | 8567392 |
| 27 | 16982215 |
| 28 | 34213477 |
| 29 | 67850054 |
| 30 | 136710948 |
| 31 | 271162515 |
| 32 | 546323617 |
| 33 | 1083843471 |
[1,2,3,5,7,13,20,36,57,108,185,355,637,1246,2344, 4595,8895,17532,34592,68287,136053,269046,539516, 1068111,2147477,4254870,8567392,16982215,34213477, 67850054,136710948,271162515,546323617,1083843471] |