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| n | a(n) |
|---|---|
| 1 | -3 |
| 2 | -2 |
| 3 | -2 |
| 4 | 0 |
| 5 | 240 |
| 6 | 0 |
| 7 | 3360 |
| 8 | 3360 |
| 9 | -5 |
| 10 | 30380 |
| 11 | 105570 |
| 12 | 30380 |
| 13 | -5 |
| 14 | -18 |
| 15 | 232710 |
| 16 | 2032620 |
| 17 | 2032620 |
| 18 | 232710 |
| 19 | -18 |
| 20 | -42 |
| 21 | 1637748 |
| 22 | 31186890 |
| 23 | 74043480 |
| 24 | 31186890 |
| 25 | 1637748 |
| 26 | -42 |
| 27 | -80 |
| 28 | 10932880 |
| 29 | 420179760 |
| 30 | 1990483600 |
| 31 | 1990483600 |
| 32 | 420179760 |
| 33 | 10932880 |
| 34 | -80 |
[-3,-2,-2,0,240,0,3360,3360,-5,30380,105570,30380, -5,-18,232710,2032620,2032620,232710,-18,-42, 1637748,31186890,74043480,31186890,1637748,-42, -80,10932880,420179760,1990483600,1990483600, 420179760,10932880,-80] |