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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | -8 |
| 5 | 1 |
| 6 | 1 |
| 7 | 6 |
| 8 | 6 |
| 9 | 1 |
| 10 | 1 |
| 11 | -80 |
| 12 | 60 |
| 13 | -80 |
| 14 | 1 |
| 15 | 1 |
| 16 | 120 |
| 17 | 1200 |
| 18 | 1200 |
| 19 | 120 |
| 20 | 1 |
| 21 | 1 |
| 22 | -728 |
| 23 | 10920 |
| 24 | -145600 |
| 25 | 10920 |
| 26 | -728 |
| 27 | 1 |
| 28 | 1 |
| 29 | 5040 |
| 30 | 458640 |
| 31 | 9172800 |
| 32 | 9172800 |
| 33 | 458640 |
| 34 | 5040 |
| 35 | 1 |
| 36 | 1 |
| 37 | -6560 |
| 38 | 4132800 |
| 39 | -501446400 |
| 40 | 752169600 |
| 41 | -501446400 |
| 42 | 4132800 |
| 43 | -6560 |
| 44 | 1 |
| 45 | 1 |
| 46 | 362880 |
| 47 | 297561600 |
| 48 | 249951744000 |
| 49 | 2274560870400 |
| 50 | 2274560870400 |
| 51 | 249951744000 |
| 52 | 297561600 |
| 53 | 362880 |
| 54 | 1 |
[1,1,1,1,-8,1,1,6,6,1,1,-80,60,-80,1,1,120,1200, 1200,120,1,1,-728,10920,-145600,10920,-728,1,1, 5040,458640,9172800,9172800,458640,5040,1,1,-6560, 4132800,-501446400,752169600,-501446400,4132800, -6560,1,1,362880,297561600,249951744000, 2274560870400,2274560870400,249951744000, 297561600,362880,1] |