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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 8 |
| 6 | 13 |
| 7 | 24 |
| 8 | 45 |
| 9 | 85 |
| 10 | 161 |
| 11 | 305 |
| 12 | 582 |
| 13 | 1116 |
| 14 | 2149 |
| 15 | 4152 |
| 16 | 8049 |
| 17 | 15653 |
| 18 | 30528 |
| 19 | 59695 |
| 20 | 117012 |
| 21 | 229880 |
| 22 | 452565 |
| 23 | 892703 |
| 24 | 1764099 |
| 25 | 3492029 |
| 26 | 6923494 |
| 27 | 13747483 |
| 28 | 27335873 |
| 29 | 54427621 |
| 30 | 108505081 |
| 31 | 216568556 |
| 32 | 432740907 |
| 33 | 865610375 |
| 34 | 1733227339 |
| 35 | 3473805680 |
| 36 | 6968708734 |
| 37 | 13991916510 |
| 38 | 28116598325 |
[1,1,1,2,4,8,13,24,45,85,161,305,582,1116,2149, 4152,8049,15653,30528,59695,117012,229880,452565, 892703,1764099,3492029,6923494,13747483,27335873, 54427621,108505081,216568556,432740907,865610375, 1733227339,3473805680,6968708734,13991916510, 28116598325] |