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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 6 |
| 7 | 10 |
| 8 | 22 |
| 9 | 41 |
| 10 | 92 |
| 11 | 193 |
| 12 | 435 |
| 13 | 963 |
| 14 | 2215 |
| 15 | 5051 |
| 16 | 11754 |
| 17 | 27375 |
| 18 | 64381 |
| 19 | 151898 |
| 20 | 360661 |
| 21 | 859149 |
| 22 | 2055804 |
| 23 | 4934428 |
| 24 | 11883930 |
| 25 | 28699336 |
| 26 | 69497354 |
| 27 | 168691424 |
| 28 | 410399073 |
| 29 | 1000486306 |
| 30 | 2443761830 |
| 31 | 5979742904 |
| 32 | 14656709518 |
[1,1,1,2,3,6,10,22,41,92,193,435,963,2215,5051, 11754,27375,64381,151898,360661,859149,2055804, 4934428,11883930,28699336,69497354,168691424, 410399073,1000486306,2443761830,5979742904, 14656709518] |