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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 2 |
| 2 | 5 |
| 3 | 6 |
| 4 | 3 |
| 5 | 2 |
| 6 | 40 |
| 7 | 24 |
| 8 | 8 |
| 9 | -1 |
| 10 | 30 |
| 11 | 300 |
| 12 | 120 |
| 13 | 30 |
| 14 | -12 |
| 15 | -24 |
| 16 | 360 |
| 17 | 2400 |
| 18 | 720 |
| 19 | 144 |
| 20 | 20 |
| 21 | -420 |
| 22 | -420 |
| 23 | 4200 |
| 24 | 21000 |
| 25 | 5040 |
| 26 | 840 |
| 27 | 480 |
| 28 | 960 |
| 29 | -10080 |
| 30 | -6720 |
| 31 | 50400 |
| 32 | 201600 |
| 33 | 40320 |
| 34 | 5760 |
| 35 | -1512 |
| 36 | 30240 |
| 37 | 30240 |
| 38 | -211680 |
| 39 | -105840 |
| 40 | 635040 |
| 41 | 2116800 |
| 42 | 362880 |
| 43 | 45360 |
| 44 | -60480 |
| 45 | -120960 |
| 46 | 1209600 |
| 47 | 806400 |
[2,2,5,6,3,2,40,24,8,-1,30,300,120,30,-12,-24,360, 2400,720,144,20,-420,-420,4200,21000,5040,840,480, 960,-10080,-6720,50400,201600,40320,5760,-1512, 30240,30240,-211680,-105840,635040,2116800,362880, 45360,-60480,-120960,1209600,806400] |