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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 4 |
| 5 | 4 |
| 6 | 1 |
| 7 | 15 |
| 8 | 48 |
| 9 | 36 |
| 10 | 1 |
| 11 | 64 |
| 12 | 504 |
| 13 | 1008 |
| 14 | 576 |
| 15 | 1 |
| 16 | 325 |
| 17 | 5680 |
| 18 | 22680 |
| 19 | 31680 |
| 20 | 14400 |
| 21 | 1 |
| 22 | 1956 |
| 23 | 72060 |
| 24 | 510480 |
| 25 | 1304640 |
| 26 | 1382400 |
| 27 | 518400 |
| 28 | 1 |
| 29 | 13699 |
| 30 | 1036224 |
| 31 | 12233340 |
| 32 | 50823360 |
| 33 | 94046400 |
| 34 | 79833600 |
| 35 | 25401600 |
| 36 | 1 |
| 37 | 109600 |
| 38 | 16798768 |
| 39 | 318469536 |
| 40 | 2017814400 |
| 41 | 5794790400 |
| 42 | 8346240000 |
| 43 | 5893171200 |
| 44 | 1625702400 |
[1,1,1,1,4,4,1,15,48,36,1,64,504,1008,576,1,325, 5680,22680,31680,14400,1,1956,72060,510480, 1304640,1382400,518400,1,13699,1036224,12233340, 50823360,94046400,79833600,25401600,1,109600, 16798768,318469536,2017814400,5794790400, 8346240000,5893171200,1625702400] |