Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | -1 |
3 | -1 |
4 | 0 |
5 | -11 |
6 | 15 |
7 | 27 |
8 | -504 |
9 | 7785 |
10 | -74025 |
11 | 835735 |
12 | -9654216 |
13 | 121643677 |
14 | -1646734089 |
15 | 23833558707 |
16 | -368032192080 |
17 | 6033531089873 |
18 | -104751319907313 |
19 | 1920112851095471 |
20 | -37066806679606640 |
21 | 751794216181100869 |
[0,1,-1,-1,0,-11,15,27,-504,7785,-74025,835735, -9654216,121643677,-1646734089,23833558707, -368032192080,6033531089873,-104751319907313, 1920112851095471,-37066806679606640, 751794216181100869] |