Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | -2 |
3 | 12 |
4 | -96 |
5 | 880 |
6 | -8720 |
7 | 90752 |
8 | -975936 |
9 | 10737152 |
10 | -120093056 |
11 | 1360051456 |
12 | -15556087296 |
13 | 179424700416 |
14 | -2084953411584 |
15 | 24393551634432 |
16 | -287204585508864 |
17 | 3400978267127808 |
18 | -40480500900446208 |
19 | 484006813958356992 |
20 | -5810240353159839744 |
21 | 70001749695581061120 |
[0,1,-2,12,-96,880,-8720,90752,-975936,10737152, -120093056,1360051456,-15556087296,179424700416, -2084953411584,24393551634432,-287204585508864, 3400978267127808,-40480500900446208, 484006813958356992,-5810240353159839744, 70001749695581061120] |