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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 3 |
| 4 | 5 |
| 5 | 10 |
| 6 | 23 |
| 7 | 44 |
| 8 | 93 |
| 9 | 193 |
| 10 | 398 |
| 11 | 828 |
| 12 | 1711 |
| 13 | 3548 |
| 14 | 7352 |
| 15 | 15238 |
| 16 | 31569 |
| 17 | 65414 |
| 18 | 135557 |
| 19 | 280856 |
| 20 | 581970 |
| 21 | 1205860 |
| 22 | 2498520 |
| 23 | 5177008 |
| 24 | 10726715 |
| 25 | 22225674 |
| 26 | 46051484 |
| 27 | 95417966 |
| 28 | 197704676 |
| 29 | 409640915 |
| 30 | 848768686 |
| 31 | 1758633069 |
| 32 | 3643854113 |
[1,1,1,3,5,10,23,44,93,193,398,828,1711,3548,7352, 15238,31569,65414,135557,280856,581970,1205860, 2498520,5177008,10726715,22225674,46051484, 95417966,197704676,409640915,848768686,1758633069, 3643854113] |