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| n | a(n) |
|---|---|
| 1 | -1 |
| 2 | 3 |
| 3 | 2 |
| 4 | -15 |
| 5 | -20 |
| 6 | -6 |
| 7 | 105 |
| 8 | 210 |
| 9 | 130 |
| 10 | 24 |
| 11 | -945 |
| 12 | -2520 |
| 13 | -2380 |
| 14 | -924 |
| 15 | -120 |
| 16 | 10395 |
| 17 | 34650 |
| 18 | 44100 |
| 19 | 26432 |
| 20 | 7308 |
| 21 | 720 |
| 22 | -135135 |
| 23 | -540540 |
| 24 | -866250 |
| 25 | -705320 |
| 26 | -303660 |
| 27 | -64224 |
| 28 | -5040 |
| 29 | 2027025 |
| 30 | 9459450 |
| 31 | 18288270 |
| 32 | 18858840 |
| 33 | 11098780 |
| 34 | 3678840 |
| 35 | 623376 |
| 36 | 40320 |
| 37 | -34459425 |
| 38 | -183783600 |
| 39 | -416215800 |
[-1,3,2,-15,-20,-6,105,210,130,24,-945,-2520, -2380,-924,-120,10395,34650,44100,26432,7308,720, -135135,-540540,-866250,-705320,-303660,-64224, -5040,2027025,9459450,18288270,18858840,11098780, 3678840,623376,40320,-34459425,-183783600, -416215800] |