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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 3 |
| 4 | 5 |
| 5 | 35 |
| 6 | 9 |
| 7 | 231 |
| 8 | 143 |
| 9 | 6435 |
| 10 | 12155 |
| 11 | 3553 |
| 12 | 88179 |
| 13 | 96577 |
| 14 | 1300075 |
| 15 | 5014575 |
| 16 | 102051 |
| 17 | 100180065 |
| 18 | 116680311 |
| 19 | 2268783825 |
| 20 | 210388475 |
| 21 | 6892326441 |
| 22 | 67282234305 |
| 23 | 17534158031 |
| 24 | 39583801575 |
| 25 | 8061900920775 |
| 26 | 169906729083 |
[1,1,3,5,35,9,231,143,6435,12155,3553,88179,96577, 1300075,5014575,102051,100180065,116680311, 2268783825,210388475,6892326441,67282234305, 17534158031,39583801575,8061900920775, 169906729083] |