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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 19 |
| 5 | 45 |
| 6 | 161 |
| 7 | 457 |
| 8 | 1571 |
| 9 | 5133 |
| 10 | 17379 |
| 11 | 60455 |
| 12 | 208771 |
| 13 | 742011 |
| 14 | 2650483 |
| 15 | 9470073 |
| 16 | 34792573 |
| 17 | 125775751 |
| 18 | 467624763 |
| 19 | 1722320273 |
| 20 | 6418015101 |
| 21 | 24102740527 |
| 22 | 90119100729 |
| 23 | 342401562717 |
| 24 | 1291652729511 |
| 25 | 4926199415291 |
| 26 | 18809379874591 |
| 27 | 71857805765303 |
| 28 | 277026203443523 |
| 29 | 1063029577433965 |
| 30 | 4116504920565953 |
[1,1,3,5,19,45,161,457,1571,5133,17379,60455, 208771,742011,2650483,9470073,34792573,125775751, 467624763,1722320273,6418015101,24102740527, 90119100729,342401562717,1291652729511, 4926199415291,18809379874591,71857805765303, 277026203443523,1063029577433965,4116504920565953] |