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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 17 |
| 5 | 38 |
| 6 | 143 |
| 7 | 363 |
| 8 | 1408 |
| 9 | 3922 |
| 10 | 15820 |
| 11 | 46805 |
| 12 | 191796 |
| 13 | 594609 |
| 14 | 2486661 |
| 15 | 7986637 |
| 16 | 33733060 |
| 17 | 111492293 |
| 18 | 476829005 |
| 19 | 1613226513 |
| 20 | 6946796857 |
| 21 | 23966426413 |
| 22 | 104083028616 |
| 23 | 365114564090 |
| 24 | 1593612887407 |
| 25 | 5670563978272 |
| 26 | 24903478535676 |
| 27 | 89729757443728 |
| 28 | 395580997299445 |
| 29 | 1440956225867589 |
| 30 | 6382522710207952 |
[1,1,3,5,17,38,143,363,1408,3922,15820,46805, 191796,594609,2486661,7986637,33733060,111492293, 476829005,1613226513,6946796857,23966426413, 104083028616,365114564090,1593612887407, 5670563978272,24903478535676,89729757443728, 395580997299445,1440956225867589,6382522710207952] |