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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 2 |
| 5 | -2 |
| 6 | 0 |
| 7 | 3 |
| 8 | -12 |
| 9 | 9 |
| 10 | 0 |
| 11 | 4 |
| 12 | -48 |
| 13 | 108 |
| 14 | -64 |
| 15 | 0 |
| 16 | 5 |
| 17 | -160 |
| 18 | 810 |
| 19 | -1280 |
| 20 | 625 |
| 21 | 0 |
| 22 | 6 |
| 23 | -480 |
| 24 | 4860 |
| 25 | -15360 |
| 26 | 18750 |
| 27 | -7776 |
| 28 | 0 |
| 29 | 7 |
| 30 | -1344 |
| 31 | 25515 |
| 32 | -143360 |
| 33 | 328125 |
| 34 | -326592 |
| 35 | 117649 |
| 36 | 0 |
| 37 | 8 |
| 38 | -3584 |
| 39 | 122472 |
| 40 | -1146880 |
| 41 | 4375000 |
| 42 | -7838208 |
| 43 | 6588344 |
| 44 | -2097152 |
[0,1,0,2,-2,0,3,-12,9,0,4,-48,108,-64,0,5,-160, 810,-1280,625,0,6,-480,4860,-15360,18750,-7776,0, 7,-1344,25515,-143360,328125,-326592,117649,0,8, -3584,122472,-1146880,4375000,-7838208,6588344, -2097152] |