n | a(n) |
---|---|
2 | 1 |
3 | 192 |
4 | -8280 |
5 | 147200 |
6 | -1438020 |
7 | 7491456 |
8 | -4626880 |
9 | -246965760 |
10 | 2112385950 |
11 | -9443825600 |
12 | 23625035616 |
13 | -14413771008 |
14 | -118710609640 |
15 | 427914230400 |
16 | -467038103040 |
17 | -645319017984 |
18 | 1640006523477 |
19 | 2800373100480 |
20 | -8506579320400 |
21 | -21655683517440 |
22 | 108181106829972 |
[1,192,-8280,147200,-1438020,7491456,-4626880, -246965760,2112385950,-9443825600,23625035616, -14413771008,-118710609640,427914230400, -467038103040,-645319017984,1640006523477, 2800373100480,-8506579320400,-21655683517440, 108181106829972] |