Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | 3 |
4 | 0 |
5 | -20 |
6 | 90 |
7 | 203 |
8 | -3360 |
9 | 3480 |
10 | 123480 |
11 | -691317 |
12 | -4660920 |
13 | 67346500 |
14 | 84564480 |
15 | -6373324357 |
16 | 19974165120 |
17 | 628445064240 |
18 | -5371928458560 |
19 | -62241266791917 |
20 | 1104961392178560 |
21 | 5221640648959900 |
22 | -225150453590240640 |
23 | 18981681539957003 |
24 | 48136732573773993600 |
[1,0,0,3,0,-20,90,203,-3360,3480,123480,-691317, -4660920,67346500,84564480,-6373324357, 19974165120,628445064240,-5371928458560, -62241266791917,1104961392178560,5221640648959900, -225150453590240640,18981681539957003, 48136732573773993600] |