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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 4 |
| 3 | 8 |
| 4 | 16 |
| 5 | 30 |
| 6 | 56 |
| 7 | 105 |
| 8 | 196 |
| 9 | 369 |
| 10 | 698 |
| 11 | 1321 |
| 12 | 2508 |
| 13 | 4770 |
| 14 | 9083 |
| 15 | 17334 |
| 16 | 33140 |
| 17 | 63466 |
| 18 | 121773 |
| 19 | 234039 |
| 20 | 450528 |
| 21 | 868666 |
| 22 | 1677389 |
| 23 | 3243701 |
| 24 | 6281376 |
| 25 | 12179877 |
| 26 | 23647240 |
| 27 | 45966699 |
| 28 | 89454941 |
| 29 | 174276826 |
| 30 | 339880182 |
| 31 | 663497793 |
| 32 | 1296458952 |
| 33 | 2535494208 |
[1,2,4,8,16,30,56,105,196,369,698,1321,2508,4770, 9083,17334,33140,63466,121773,234039,450528, 868666,1677389,3243701,6281376,12179877,23647240, 45966699,89454941,174276826,339880182,663497793, 1296458952,2535494208] |