| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 8 |
| 5 | 16 |
| 6 | 31 |
| 7 | 63 |
| 8 | 120 |
| 9 | 240 |
| 10 | 459 |
| 11 | 897 |
| 12 | 1716 |
| 13 | 3294 |
| 14 | 6258 |
| 15 | 11852 |
| 16 | 22283 |
| 17 | 41647 |
| 18 | 78197 |
| 19 | 144013 |
| 20 | 264485 |
| 21 | 489979 |
| 22 | 892277 |
| 23 | 1612753 |
| 24 | 2933983 |
| 25 | 5288025 |
| 26 | 9454944 |
| 27 | 16891074 |
| 28 | 30121434 |
| 29 | 53179092 |
| 30 | 93997401 |
| 31 | 164816943 |
| 32 | 289313718 |
| 33 | 502617530 |
| 34 | 877419533 |
| 35 | 1514746093 |
[1,1,2,4,8,16,31,63,120,240,459,897,1716,3294, 6258,11852,22283,41647,78197,144013,264485,489979, 892277,1612753,2933983,5288025,9454944,16891074, 30121434,53179092,93997401,164816943,289313718, 502617530,877419533,1514746093] |