| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 8 |
| 5 | 15 |
| 6 | 28 |
| 7 | 52 |
| 8 | 96 |
| 9 | 177 |
| 10 | 345 |
| 11 | 694 |
| 12 | 1386 |
| 13 | 2751 |
| 14 | 5431 |
| 15 | 10672 |
| 16 | 20885 |
| 17 | 40724 |
| 18 | 79153 |
| 19 | 153402 |
| 20 | 296528 |
| 21 | 571845 |
| 22 | 1129293 |
| 23 | 2264749 |
| 24 | 4527029 |
| 25 | 9021498 |
| 26 | 17926740 |
| 27 | 35527082 |
| 28 | 70230422 |
| 29 | 138504765 |
| 30 | 272545323 |
| 31 | 535184340 |
| 32 | 1048842743 |
| 33 | 2051669285 |
| 34 | 4006253136 |
| 35 | 7954830148 |
[1,1,2,4,8,15,28,52,96,177,345,694,1386,2751,5431, 10672,20885,40724,79153,153402,296528,571845, 1129293,2264749,4527029,9021498,17926740,35527082, 70230422,138504765,272545323,535184340,1048842743, 2051669285,4006253136,7954830148] |