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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 0 |
| 3 | 0 |
| 4 | -56 |
| 5 | 120 |
| 6 | 0 |
| 7 | 0 |
| 8 | -240 |
| 9 | 9 |
| 10 | 0 |
| 11 | 0 |
| 12 | 1440 |
| 13 | -1320 |
| 14 | 0 |
| 15 | 0 |
| 16 | -704 |
| 17 | -240 |
| 18 | 0 |
| 19 | 0 |
| 20 | 960 |
| 21 | 5040 |
| 22 | 0 |
| 23 | 0 |
| 24 | -12960 |
| 25 | 1705 |
| 26 | 0 |
| 27 | 0 |
| 28 | 13440 |
| 29 | -3960 |
| 30 | 0 |
| 31 | 0 |
| 32 | 5760 |
| 33 | -6480 |
| 34 | 0 |
| 35 | 0 |
| 36 | -504 |
| 37 | -23880 |
| 38 | 0 |
| 39 | 0 |
| 40 | 23520 |
| 41 | 16320 |
| 42 | 0 |
| 43 | 0 |
| 44 | -43680 |
| 45 | 59400 |
| 46 | 0 |
| 47 | 0 |
| 48 | -34560 |
| 49 | -33551 |
| 50 | 0 |
| 51 | 0 |
| 52 | -10560 |
| 53 | 4200 |
| 54 | 0 |
| 55 | 0 |
| 56 | 87360 |
| 57 | 65520 |
| 58 | 0 |
| 59 | 0 |
| 60 | -51840 |
| 61 | -141240 |
[1,0,0,-56,120,0,0,-240,9,0,0,1440,-1320,0,0,-704, -240,0,0,960,5040,0,0,-12960,1705,0,0,13440,-3960, 0,0,5760,-6480,0,0,-504,-23880,0,0,23520,16320,0, 0,-43680,59400,0,0,-34560,-33551,0,0,-10560,4200, 0,0,87360,65520,0,0,-51840,-141240] |