n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | -1 |
3 | 3 |
4 | -10 |
5 | 40 |
6 | -190 |
7 | 1050 |
8 | -6620 |
9 | 46800 |
10 | -365300 |
11 | 3103100 |
12 | -28269800 |
13 | 271627200 |
14 | -2691559000 |
15 | 26495469000 |
16 | -238131478000 |
17 | 1394099824000 |
18 | 15194495654000 |
19 | -936096296850000 |
20 | 29697351895900000 |
21 | -819329864480400000 |
22 | 21683886333440500000 |
23 | -570263312237604700000 |
[1,0,-1,3,-10,40,-190,1050,-6620,46800,-365300, 3103100,-28269800,271627200,-2691559000, 26495469000,-238131478000,1394099824000, 15194495654000,-936096296850000,29697351895900000, -819329864480400000,21683886333440500000, -570263312237604700000] |