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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 4 |
| 3 | 7 |
| 4 | 14 |
| 5 | 24 |
| 6 | 48 |
| 7 | 82 |
| 8 | 164 |
| 9 | 280 |
| 10 | 560 |
| 11 | 956 |
| 12 | 1912 |
| 13 | 3264 |
| 14 | 6528 |
| 15 | 11144 |
| 16 | 22288 |
| 17 | 38048 |
| 18 | 76096 |
| 19 | 129904 |
| 20 | 259808 |
| 21 | 443520 |
| 22 | 887040 |
| 23 | 1514272 |
| 24 | 3028544 |
| 25 | 5170048 |
| 26 | 10340096 |
| 27 | 17651648 |
| 28 | 35303296 |
| 29 | 60266496 |
| 30 | 120532992 |
| 31 | 205762688 |
| 32 | 411525376 |
| 33 | 702517760 |
| 34 | 1405035520 |
| 35 | 2398545664 |
| 36 | 4797091328 |
| 37 | 8189147136 |
| 38 | 16378294272 |
| 39 | 27959497216 |
[1,2,4,7,14,24,48,82,164,280,560,956,1912,3264, 6528,11144,22288,38048,76096,129904,259808,443520, 887040,1514272,3028544,5170048,10340096,17651648, 35303296,60266496,120532992,205762688,411525376, 702517760,1405035520,2398545664,4797091328, 8189147136,16378294272,27959497216] |