n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | -3 |
4 | 0 |
5 | -30 |
6 | 90 |
7 | -588 |
8 | 5040 |
9 | -26520 |
10 | 325080 |
11 | -2158728 |
12 | 27731880 |
13 | -249259920 |
14 | 3181258080 |
15 | -36821629848 |
16 | 482278043520 |
17 | -6704476956480 |
18 | 93675256079040 |
19 | -1479108131816448 |
20 | 22566722722104960 |
21 | -390679249452835200 |
22 | 6559255213047250560 |
23 | -122197022127873558528 |
[1,0,0,-3,0,-30,90,-588,5040,-26520,325080, -2158728,27731880,-249259920,3181258080, -36821629848,482278043520,-6704476956480, 93675256079040,-1479108131816448, 22566722722104960,-390679249452835200, 6559255213047250560,-122197022127873558528] |