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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 12 |
| 5 | 1 |
| 6 | 1 |
| 7 | 30 |
| 8 | 30 |
| 9 | 1 |
| 10 | 1 |
| 11 | 56 |
| 12 | 140 |
| 13 | 56 |
| 14 | 1 |
| 15 | 1 |
| 16 | 90 |
| 17 | 420 |
| 18 | 420 |
| 19 | 90 |
| 20 | 1 |
| 21 | 1 |
| 22 | 132 |
| 23 | 990 |
| 24 | 1848 |
| 25 | 990 |
| 26 | 132 |
| 27 | 1 |
| 28 | 1 |
| 29 | 182 |
| 30 | 2002 |
| 31 | 6006 |
| 32 | 6006 |
| 33 | 2002 |
| 34 | 182 |
| 35 | 1 |
| 36 | 1 |
| 37 | 240 |
| 38 | 3640 |
| 39 | 16016 |
| 40 | 25740 |
| 41 | 16016 |
| 42 | 3640 |
| 43 | 240 |
| 44 | 1 |
| 45 | 1 |
| 46 | 306 |
| 47 | 6120 |
| 48 | 37128 |
| 49 | 87516 |
| 50 | 87516 |
| 51 | 37128 |
| 52 | 6120 |
| 53 | 306 |
| 54 | 1 |
| 55 | 1 |
| 56 | 380 |
| 57 | 9690 |
| 58 | 77520 |
| 59 | 251940 |
| 60 | 369512 |
| 61 | 251940 |
| 62 | 77520 |
| 63 | 9690 |
| 64 | 380 |
| 65 | 1 |
[1,1,1,1,12,1,1,30,30,1,1,56,140,56,1,1,90,420, 420,90,1,1,132,990,1848,990,132,1,1,182,2002,6006, 6006,2002,182,1,1,240,3640,16016,25740,16016,3640, 240,1,1,306,6120,37128,87516,87516,37128,6120,306, 1,1,380,9690,77520,251940,369512,251940,77520, 9690,380,1] |