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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 5 |
| 3 | 11 |
| 4 | 21 |
| 5 | 43 |
| 6 | 69 |
| 7 | 219 |
| 8 | 261 |
| 9 | 795 |
| 10 | 1301 |
| 11 | 2923 |
| 12 | 5205 |
| 13 | 11691 |
| 14 | 20805 |
| 15 | 46811 |
| 16 | 83205 |
| 17 | 187163 |
| 18 | 333077 |
| 19 | 748395 |
| 20 | 1332309 |
| 21 | 2993579 |
| 22 | 5329221 |
| 23 | 11974363 |
| 24 | 21316869 |
| 25 | 47897371 |
| 26 | 85267733 |
| 27 | 191589227 |
| 28 | 341070933 |
| 29 | 766356907 |
| 30 | 1364283717 |
| 31 | 3065427675 |
| 32 | 5457134853 |
| 33 | 12261710619 |
[1,3,5,11,21,43,69,219,261,795,1301,2923,5205, 11691,20805,46811,83205,187163,333077,748395, 1332309,2993579,5329221,11974363,21316869, 47897371,85267733,191589227,341070933,766356907, 1364283717,3065427675,5457134853,12261710619] |