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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -6 |
| 2 | 24 |
| 3 | -30 |
| 4 | -72 |
| 5 | 0 |
| 6 | 840 |
| 7 | -2028 |
| 8 | 4896 |
| 9 | -5910 |
| 10 | 0 |
| 11 | 0 |
| 12 | -83160 |
| 13 | -401532 |
| 14 | 1938768 |
| 15 | 0 |
| 16 | -2824992 |
| 17 | 0 |
| 18 | 32930520 |
| 19 | -79501308 |
| 20 | 0 |
| 21 | -463367580 |
| 22 | 0 |
| 23 | 0 |
| 24 | 6520076640 |
| 25 | -7870428726 |
| 26 | 76003583088 |
| 27 | -45872220270 |
| 28 | -221490672624 |
| 29 | 0 |
| 30 | 0 |
| 31 | -3116610274188 |
| 32 | 7524162792576 |
| 33 | 0 |
| 34 | 0 |
| 35 | 0 |
| 36 | -127800022137480 |
[1,-6,24,-30,-72,0,840,-2028,4896,-5910,0,0, -83160,-401532,1938768,0,-2824992,0,32930520, -79501308,0,-463367580,0,0,6520076640,-7870428726, 76003583088,-45872220270,-221490672624,0,0, -3116610274188,7524162792576,0,0,0, -127800022137480] |