| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 4 |
| 3 | 8 |
| 4 | 14 |
| 5 | 28 |
| 6 | 52 |
| 7 | 104 |
| 8 | 188 |
| 9 | 308 |
| 10 | 548 |
| 11 | 1096 |
| 12 | 1784 |
| 13 | 3568 |
| 14 | 6168 |
| 15 | 10404 |
| 16 | 16200 |
| 17 | 32400 |
| 18 | 49968 |
| 19 | 99936 |
| 20 | 155584 |
| 21 | 256944 |
| 22 | 433736 |
| 23 | 867472 |
| 24 | 1297504 |
| 25 | 2026288 |
| 26 | 3387216 |
| 27 | 5692056 |
| 28 | 8682912 |
| 29 | 17365824 |
| 30 | 25243200 |
| 31 | 50486400 |
| 32 | 78433056 |
| 33 | 125191968 |
| 34 | 206649216 |
| 35 | 328195632 |
[1,2,4,8,14,28,52,104,188,308,548,1096,1784,3568, 6168,10404,16200,32400,49968,99936,155584,256944, 433736,867472,1297504,2026288,3387216,5692056, 8682912,17365824,25243200,50486400,78433056, 125191968,206649216,328195632] |