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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 6 |
| 4 | 10 |
| 5 | 34 |
| 6 | 52 |
| 7 | 229 |
| 8 | 324 |
| 9 | 973 |
| 10 | 1316 |
| 11 | 5988 |
| 12 | 7986 |
| 13 | 20208 |
| 14 | 26256 |
| 15 | 112669 |
| 16 | 144242 |
| 17 | 348661 |
| 18 | 436424 |
| 19 | 2101172 |
| 20 | 2662972 |
| 21 | 5911779 |
| 22 | 7366040 |
| 23 | 27473425 |
| 24 | 34012310 |
| 25 | 72163847 |
| 26 | 88028512 |
| 27 | 413490686 |
| 28 | 510895170 |
| 29 | 1067092215 |
| 30 | 1303755984 |
| 31 | 4229661687 |
[1,1,2,6,10,34,52,229,324,973,1316,5988,7986, 20208,26256,112669,144242,348661,436424,2101172, 2662972,5911779,7366040,27473425,34012310, 72163847,88028512,413490686,510895170,1067092215, 1303755984,4229661687] |