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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 3 |
| 4 | 1 |
| 5 | 9 |
| 6 | 12 |
| 7 | 1 |
| 8 | 12 |
| 9 | 6 |
| 10 | 66 |
| 11 | 55 |
| 12 | 1 |
| 13 | 15 |
| 14 | 15 |
| 15 | 105 |
| 16 | 105 |
| 17 | 455 |
| 18 | 273 |
| 19 | 1 |
| 20 | 18 |
| 21 | 18 |
| 22 | 9 |
| 23 | 153 |
| 24 | 306 |
| 25 | 51 |
| 26 | 816 |
| 27 | 1224 |
| 28 | 3060 |
| 29 | 1428 |
| 30 | 1 |
| 31 | 21 |
| 32 | 21 |
| 33 | 21 |
| 34 | 210 |
| 35 | 420 |
| 36 | 210 |
| 37 | 210 |
| 38 | 1330 |
| 39 | 3990 |
| 40 | 1330 |
| 41 | 5985 |
| 42 | 11970 |
| 43 | 20349 |
| 44 | 7752 |
| 45 | 1 |
| 46 | 24 |
| 47 | 24 |
| 48 | 24 |
| 49 | 12 |
| 50 | 276 |
| 51 | 552 |
| 52 | 552 |
| 53 | 276 |
| 54 | 276 |
| 55 | 2024 |
| 56 | 6072 |
| 57 | 3036 |
| 58 | 6072 |
| 59 | 506 |
| 60 | 10626 |
| 61 | 42504 |
| 62 | 21252 |
| 63 | 42504 |
| 64 | 106260 |
| 65 | 134596 |
| 66 | 43263 |
[1,1,3,1,9,12,1,12,6,66,55,1,15,15,105,105,455, 273,1,18,18,9,153,306,51,816,1224,3060,1428,1,21, 21,21,210,420,210,210,1330,3990,1330,5985,11970, 20349,7752,1,24,24,24,12,276,552,552,276,276,2024, 6072,3036,6072,506,10626,42504,21252,42504,106260, 134596,43263] |