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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 3 |
| 4 | 5 |
| 5 | 1 |
| 6 | 12 |
| 7 | 28 |
| 8 | 16 |
| 9 | 2 |
| 10 | 55 |
| 11 | 165 |
| 12 | 152 |
| 13 | 47 |
| 14 | 4 |
| 15 | 273 |
| 16 | 1001 |
| 17 | 1265 |
| 18 | 658 |
| 19 | 136 |
| 20 | 9 |
| 21 | 1428 |
| 22 | 6188 |
| 23 | 9919 |
| 24 | 7315 |
| 25 | 2547 |
| 26 | 392 |
| 27 | 21 |
| 28 | 7752 |
| 29 | 38760 |
| 30 | 75208 |
| 31 | 71981 |
| 32 | 35975 |
| 33 | 9252 |
| 34 | 1130 |
| 35 | 51 |
| 36 | 43263 |
| 37 | 245157 |
| 38 | 558144 |
| 39 | 657356 |
| 40 | 431599 |
| 41 | 159701 |
| 42 | 32286 |
| 43 | 3262 |
| 44 | 127 |
| 45 | 246675 |
| 46 | 1562275 |
[1,1,1,3,5,1,12,28,16,2,55,165,152,47,4,273,1001, 1265,658,136,9,1428,6188,9919,7315,2547,392,21, 7752,38760,75208,71981,35975,9252,1130,51,43263, 245157,558144,657356,431599,159701,32286,3262,127, 246675,1562275] |