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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 1 |
| 3 | 3 |
| 4 | 5 |
| 5 | 15 |
| 6 | 9 |
| 7 | 123 |
| 8 | 413 |
| 9 | 143 |
| 10 | 457 |
| 11 | 763 |
| 12 | 1821 |
| 13 | 2831 |
| 14 | 7881 |
| 15 | 15355 |
| 16 | 32285 |
| 17 | 40335 |
| 18 | 81865 |
| 19 | 157179 |
| 20 | 314909 |
| 21 | 524303 |
| 22 | 1443785 |
| 23 | 3713275 |
| 24 | 4453149 |
| 25 | 11900559 |
| 26 | 33321929 |
| 27 | 39611899 |
| 28 | 116977181 |
| 29 | 252768271 |
| 30 | 57748425 |
| 31 | 1609301243 |
| 32 | 7851626269 |
| 33 | 3775173263 |
| 34 | 11715297225 |
[1,3,1,3,5,15,9,123,413,143,457,763,1821,2831, 7881,15355,32285,40335,81865,157179,314909,524303, 1443785,3713275,4453149,11900559,33321929, 39611899,116977181,252768271,57748425,1609301243, 7851626269,3775173263,11715297225] |