Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | 2 |
3 | -6 |
4 | 16 |
5 | -72 |
6 | 328 |
7 | -1848 |
8 | 11712 |
9 | -81088 |
10 | 638720 |
11 | -5318016 |
12 | 49459840 |
13 | -483162240 |
14 | 5159926528 |
15 | -57865303296 |
16 | 697030680576 |
17 | -8815813734400 |
18 | 118233272496128 |
19 | -1662921003208704 |
20 | 24578235697610752 |
21 | -380141599264751616 |
22 | 6139851821419921408 |
[1,-1,2,-6,16,-72,328,-1848,11712,-81088,638720, -5318016,49459840,-483162240,5159926528, -57865303296,697030680576,-8815813734400, 118233272496128,-1662921003208704, 24578235697610752,-380141599264751616, 6139851821419921408] |